Tag: heat treatment

Microstructure and mechanical properties of silicon-free Al-Cu-Ni casting alloys used in heavy duty aircraft engine parts

Czasopismo : Advances in Manufacturing Science and Technology
Tytuł artykułu : Microstructure and mechanical properties of silicon-free Al-Cu-Ni casting alloys used in heavy duty aircraft engine parts

Autorzy :
Grzesik, W.
Opole University of Technology, Faculty of Mechanical Engineering, 45-271 Opole, 5 Mikołajczyka Str., w.grzesik@po.opole.pl,
Żak, K.
Opole University of Technology, Faculty of Mechanical Engineering, 45-271 Opole, 5 Mikołajczyka Str., k.zak@po.opole.pl,
Gessner, A.
Poznan University of Technology, Institute of Mechanical Technology, Faculty of Mechanical Engineering and Management, Marii Skłodowskiej – Curie 5, 60 – 965 Poznań, Poland, +48 616652258, andrzej.gessner@put.poznan.pl,
Staniek, R.
Poznan University of Technology, Institute of Mechanical Technology, Faculty of Mechanical Engineering and Management, Marii Skłodowskiej – Curie 5, 60 – 965 Poznań, Poland, +48 616652258,
Bartkowiak, T.
Poznan University of Technology, Institute of Mechanical Technology, Faculty of Mechanical Engineering and Management, Marii Skłodowskiej – Curie 5, 60 – 965 Poznań, Poland, +48 616652258,
Broshchak, I.
Ternopil National Technical University, Faculty of Mechanical Engineering and Food Technology, 56 Ruska St., 46001 Ternopil, Ukraine, i.broshchak@gmail.com,
Lutsiv, I.
Ternopil National Technical University, Faculty of Mechanical Engineering and Food Technology, 56 Ruska St., 46001 Ternopil, Ukraine, lootsiv@tu.edu.te.ua,
Hurey, I.
Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics, 12 Powstancow Warszawy Av., 35 – 959 Rzeszow, Poland, ihurey@prz.edu.pl,
Smardziova, M.
Slovak University of Technology, J. Bottu 25, 917 24 Trnava, Slovakia,
Żak, K.
Opole University of Technology, Mikołajczyka 5, 45 – 271 Opole,
Hurey, I.
Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics, 12 Powstancow Warszawy Av., 35-959 Rzeszow, ihurey@ prz.edu.pl,
Gurey, V.
Lviv Polytechnic National University, Institute of Engineering Mechanics and Transport,
Dmyterko, P.
Lviv Polytechnic National University, Institute of Engineering Mechanics and Transport,
Babiarz, R.
Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics, 12 Powstancow Warszawy Av., 35-959 Rzeszow,
Nowotnik, A.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32, nowotnik@prz.edu.pl,
Pędrak, P.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32,
Rokicki, P.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32,
Mrówka-Nowotnik, G.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32,
Sieniawski, J.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32,
Mrówka-Nowotnik, G.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 36 46, Fax (+48, 0-17) 854 48 32, mrowka@prz.edu.pl,
Sieniawski, J.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 36 46, Fax (+48, 0-17) 854 48 32,
Wierzbińska, M.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 36 46, Fax (+48, 0-17) 854 48 32,
Nowotnik, A.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 36 46, Fax (+48, 0-17) 854 48 32,
Abstrakty : The main task of this work was to study the microstructure and mechanical properties of silicon-free Al-Cu-Ni casting alloys. The microstructure of tested samples was evaluated in terms of fracture mechanism using an optical microscope – Nikon 300, scanning electron microscope HITACHI S-3400 (SEM) in a conventional back-scattered electron mode and JEOL – JEM 2100 ARP TEM/STEM electron microscope. The mechanical (Rm and R0.2) and plastic (A,Z) properties of the examined alloy were evaluated by uniaxial tensile test at room temperature. The results shows that the casting method and the applied thermal processing did not have a significant influence on the primary (Al6Fe, Al2CuMg, Al7Cu4Ni, Al3(CuFeNi)2 and AlCuMn) intermetallic phase composition and microstructure phase component morphology. However, during prolonged heating growth and change in the shape of separations of the θ'-Al2Cu reinforcing phase occurs proportionally to temperature and heating time. Sand casts show higher mechanical properties: Rm R0.2. The stability of the mechanical properties of the investigated alloys in higher temperatures is the consequence of the increased Cu content.

Celem pracy była analiza mikrostruktury i właściwości mechanicznych odlewniczych, bezkrzemowych stopów Al-Cu-Ni. Obserwacje mikrostruktury prowadzono przy użyciu mikroskopu świetlnego -Nikon 300, elektronowego mikroskopu skaningowego HITACHI S-3400 z systemem EDS do mikroanalizy rentgenowskiej i elektronowego mikroskopu transmisyjnego JEOL – JEM 2100 ARP z systemem STEM/EDS. Właściwości wytrzymałościowe (Rm, R02) i plastyczne (A,Z) badanych stopów wyznaczono w próbie statycznej rozciągania w temperaturze pokojowej. Analiza uzyskanych wyników badań pozwoliła stwierdzić, że sposób odlewania oraz obróbka cieplna nie mają istotnego wpływu na skład fazowy oraz morfologię pierwotnych cząstek faz międzymetalicznych (Al6Fe, Al2CuMg, Al7Cu4Ni, Al3(CuFeNi)2 i AlCuMn. Długotrwałe wygrzewanie, w podwyższonej temperaturze powoduje jednak znaczny wzrost cząstek umacniającej fazy θ'-Al2Cu. Ustalono, że lepsze właściwości mechaniczne: Rm i R02 wykazują stopy odlane do form piaskowych. Stabilność właściwości mechanicznych badanych stopów w podwyższonej temperaturze jest spowodowana większą zawartością Cu.

Słowa kluczowe : stop aluminium, mikrostruktura, obróbka cieplna, właściwości mechaniczne, aluminium alloy, microstructure, heat treatment, mechanical properties,
Wydawnictwo : Komitet Budowy Maszyn PAN
Rocznik : 2014
Numer : Vol. 38, nr 3
Strony : 77 – 93
Bibliografia : 1 Aluminium Handbook. vol.1: Fundamentals and Materials. Aluminium-Verlag Marketing & Kommunikation GmbH, Düsseldorf 1999.
2 J.W. MARTIN: Precipitation Hardening. Oxford, Pergamon Press 1968.
3 I.J. POLMEAR: Light alloys. Metallurgy of the light metals. Arnold, London-New York-Sydney-Auckland 1995.
4 F. KING: Aluminium and its alloys. John Willey & Sons, New York-Chichester-Brisbane-Toronto, 1987.
5 C. RAVI, C. WOLVERTON: First-principles study of crystal structure and stability of Al-Mg-Si-(Cu) precipitates. Acta Mater, 52 (2004) 4213-4227.
6 G. MRÓWKA – NOWOTNIK: Intermetallic phase particles in cast AlSi5Cu1Mg and AlCu4Ni2Mg2 aluminium alloys. Arch. of Mater Sci. Eng., 38, 2 (2009) 69-77.
7 G. MRÓWKA – NOWOTNIK: Analysis of intermetallic phase particles in cast AlCu4Ni2Mg2 aluminium alloy in T6 condition. Proc. Inter. Conf.: Mashinostroenie i tekhnosfera XXI veka, Donieck 2009, 177-181.
8 G. MRÓWKA – NOWOTNIK, J. SIENIAWSKI: The chemical phenol extraction of intermetallic particles from casting AlSi5Cu1Mg alloy. J. Microscop, 237(2010) 407-410.
9 Z. LI, A.M. SAMUEL, C. RAYINDRAN, S. VALTIERRA, H.W. DOTY: Parameters controlling the performance of AA319-type alloys: Part II. Impact properties and fractography. Mater. Sci. Eng., A367 (2004) 111-122.
10 L.F. MONDOLFO, Aluminium Alloys: Structure and Properties. Butterworths London-Boston 1976.
11 M. WIERZBIŃSKA, J. SIENIAWSKI: Effect of morphology of eutectic silicon crystals on mechanical properties and cleavage fracture toughness of AlSi5Cu1 alloy. J. Ach. Mater Manuf. Eng, 14 (2006) 217-220.
12 F.O. TRAEKNER: Factors Affecting the physical characteristics of aluminium magnesium silicon alloy extrusions. Proc. Inter. Conf. Atlanta 1977, 339-347.
13 L. BÄCKERUD, G. CHAI: Solidification characteristics of aluminum alloys 3. American Foundry Society, Des Plaines, Illinois 1992.
14 N.A. BELOV, A.A. AKSENOV, D.G ESKIN: Iron in aluminium alloys. Taylor & Francis Inc, New York 2002.
15 PN-EN 10002-1+AC1. Metals. Standard method of tensile test at room temperature.
DOI :
Cytuj : Grzesik, W. ,Żak, K. ,Gessner, A. ,Staniek, R. ,Bartkowiak, T. ,Broshchak, I. ,Lutsiv, I. ,Hurey, I. ,Smardziova, M. ,Żak, K. ,Hurey, I. ,Gurey, V. ,Dmyterko, P. ,Babiarz, R. ,Nowotnik, A. ,Pędrak, P. ,Rokicki, P. ,Mrówka-Nowotnik, G. ,Sieniawski, J. ,Mrówka-Nowotnik, G. ,Sieniawski, J. ,Wierzbińska, M. ,Nowotnik, A. , Microstructure and mechanical properties of silicon-free Al-Cu-Ni casting alloys used in heavy duty aircraft engine parts. Advances in Manufacturing Science and Technology Vol. 38, nr 3/2014

PL Mikrostruktura i właściwości mechaniczne odlewniczych bezkrzemowych stopów Al-Cu-Ni stosowanych na silnie obciążone elementy silników lotniczych

Journal : Advances in Manufacturing Science and Technology
Article : Microstructure and mechanical properties of silicon-free Al-Cu-Ni casting alloys used in heavy duty aircraft engine parts

Authors :
Grzesik, W.
Opole University of Technology, Faculty of Mechanical Engineering, 45-271 Opole, 5 Mikołajczyka Str., w.grzesik@po.opole.pl,
Żak, K.
Opole University of Technology, Faculty of Mechanical Engineering, 45-271 Opole, 5 Mikołajczyka Str., k.zak@po.opole.pl,
Gessner, A.
Poznan University of Technology, Institute of Mechanical Technology, Faculty of Mechanical Engineering and Management, Marii Skłodowskiej – Curie 5, 60 – 965 Poznań, Poland, +48 616652258, andrzej.gessner@put.poznan.pl,
Staniek, R.
Poznan University of Technology, Institute of Mechanical Technology, Faculty of Mechanical Engineering and Management, Marii Skłodowskiej – Curie 5, 60 – 965 Poznań, Poland, +48 616652258,
Bartkowiak, T.
Poznan University of Technology, Institute of Mechanical Technology, Faculty of Mechanical Engineering and Management, Marii Skłodowskiej – Curie 5, 60 – 965 Poznań, Poland, +48 616652258,
Broshchak, I.
Ternopil National Technical University, Faculty of Mechanical Engineering and Food Technology, 56 Ruska St., 46001 Ternopil, Ukraine, i.broshchak@gmail.com,
Lutsiv, I.
Ternopil National Technical University, Faculty of Mechanical Engineering and Food Technology, 56 Ruska St., 46001 Ternopil, Ukraine, lootsiv@tu.edu.te.ua,
Hurey, I.
Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics, 12 Powstancow Warszawy Av., 35 – 959 Rzeszow, Poland, ihurey@prz.edu.pl,
Smardziova, M.
Slovak University of Technology, J. Bottu 25, 917 24 Trnava, Slovakia,
Żak, K.
Opole University of Technology, Mikołajczyka 5, 45 – 271 Opole,
Hurey, I.
Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics, 12 Powstancow Warszawy Av., 35-959 Rzeszow, ihurey@ prz.edu.pl,
Gurey, V.
Lviv Polytechnic National University, Institute of Engineering Mechanics and Transport,
Dmyterko, P.
Lviv Polytechnic National University, Institute of Engineering Mechanics and Transport,
Babiarz, R.
Rzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics, 12 Powstancow Warszawy Av., 35-959 Rzeszow,
Nowotnik, A.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32, nowotnik@prz.edu.pl,
Pędrak, P.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32,
Rokicki, P.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32,
Mrówka-Nowotnik, G.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32,
Sieniawski, J.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 11 24, Fax (+48, 0-17) 854 48 32,
Mrówka-Nowotnik, G.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 36 46, Fax (+48, 0-17) 854 48 32, mrowka@prz.edu.pl,
Sieniawski, J.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 36 46, Fax (+48, 0-17) 854 48 32,
Wierzbińska, M.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 36 46, Fax (+48, 0-17) 854 48 32,
Nowotnik, A.
Rzeszow University of Technology, Department of Materials Science, 2 W. Pola St., 35-959 Rzeszów, Phone (+48, 0-17) 865 36 46, Fax (+48, 0-17) 854 48 32,
Abstract : The main task of this work was to study the microstructure and mechanical properties of silicon-free Al-Cu-Ni casting alloys. The microstructure of tested samples was evaluated in terms of fracture mechanism using an optical microscope – Nikon 300, scanning electron microscope HITACHI S-3400 (SEM) in a conventional back-scattered electron mode and JEOL – JEM 2100 ARP TEM/STEM electron microscope. The mechanical (Rm and R0.2) and plastic (A,Z) properties of the examined alloy were evaluated by uniaxial tensile test at room temperature. The results shows that the casting method and the applied thermal processing did not have a significant influence on the primary (Al6Fe, Al2CuMg, Al7Cu4Ni, Al3(CuFeNi)2 and AlCuMn) intermetallic phase composition and microstructure phase component morphology. However, during prolonged heating growth and change in the shape of separations of the θ'-Al2Cu reinforcing phase occurs proportionally to temperature and heating time. Sand casts show higher mechanical properties: Rm R0.2. The stability of the mechanical properties of the investigated alloys in higher temperatures is the consequence of the increased Cu content.

Celem pracy była analiza mikrostruktury i właściwości mechanicznych odlewniczych, bezkrzemowych stopów Al-Cu-Ni. Obserwacje mikrostruktury prowadzono przy użyciu mikroskopu świetlnego -Nikon 300, elektronowego mikroskopu skaningowego HITACHI S-3400 z systemem EDS do mikroanalizy rentgenowskiej i elektronowego mikroskopu transmisyjnego JEOL – JEM 2100 ARP z systemem STEM/EDS. Właściwości wytrzymałościowe (Rm, R02) i plastyczne (A,Z) badanych stopów wyznaczono w próbie statycznej rozciągania w temperaturze pokojowej. Analiza uzyskanych wyników badań pozwoliła stwierdzić, że sposób odlewania oraz obróbka cieplna nie mają istotnego wpływu na skład fazowy oraz morfologię pierwotnych cząstek faz międzymetalicznych (Al6Fe, Al2CuMg, Al7Cu4Ni, Al3(CuFeNi)2 i AlCuMn. Długotrwałe wygrzewanie, w podwyższonej temperaturze powoduje jednak znaczny wzrost cząstek umacniającej fazy θ'-Al2Cu. Ustalono, że lepsze właściwości mechaniczne: Rm i R02 wykazują stopy odlane do form piaskowych. Stabilność właściwości mechanicznych badanych stopów w podwyższonej temperaturze jest spowodowana większą zawartością Cu.

Keywords : stop aluminium, mikrostruktura, obróbka cieplna, właściwości mechaniczne, aluminium alloy, microstructure, heat treatment, mechanical properties,
Publishing house : Komitet Budowy Maszyn PAN
Publication date : 2014
Number : Vol. 38, nr 3
Page : 77 – 93

Bibliography
: 1 Aluminium Handbook. vol.1: Fundamentals and Materials. Aluminium-Verlag Marketing & Kommunikation GmbH, Düsseldorf 1999.
2 J.W. MARTIN: Precipitation Hardening. Oxford, Pergamon Press 1968.
3 I.J. POLMEAR: Light alloys. Metallurgy of the light metals. Arnold, London-New York-Sydney-Auckland 1995.
4 F. KING: Aluminium and its alloys. John Willey & Sons, New York-Chichester-Brisbane-Toronto, 1987.
5 C. RAVI, C. WOLVERTON: First-principles study of crystal structure and stability of Al-Mg-Si-(Cu) precipitates. Acta Mater, 52 (2004) 4213-4227.
6 G. MRÓWKA – NOWOTNIK: Intermetallic phase particles in cast AlSi5Cu1Mg and AlCu4Ni2Mg2 aluminium alloys. Arch. of Mater Sci. Eng., 38, 2 (2009) 69-77.
7 G. MRÓWKA – NOWOTNIK: Analysis of intermetallic phase particles in cast AlCu4Ni2Mg2 aluminium alloy in T6 condition. Proc. Inter. Conf.: Mashinostroenie i tekhnosfera XXI veka, Donieck 2009, 177-181.
8 G. MRÓWKA – NOWOTNIK, J. SIENIAWSKI: The chemical phenol extraction of intermetallic particles from casting AlSi5Cu1Mg alloy. J. Microscop, 237(2010) 407-410.
9 Z. LI, A.M. SAMUEL, C. RAYINDRAN, S. VALTIERRA, H.W. DOTY: Parameters controlling the performance of AA319-type alloys: Part II. Impact properties and fractography. Mater. Sci. Eng., A367 (2004) 111-122.
10 L.F. MONDOLFO, Aluminium Alloys: Structure and Properties. Butterworths London-Boston 1976.
11 M. WIERZBIŃSKA, J. SIENIAWSKI: Effect of morphology of eutectic silicon crystals on mechanical properties and cleavage fracture toughness of AlSi5Cu1 alloy. J. Ach. Mater Manuf. Eng, 14 (2006) 217-220.
12 F.O. TRAEKNER: Factors Affecting the physical characteristics of aluminium magnesium silicon alloy extrusions. Proc. Inter. Conf. Atlanta 1977, 339-347.
13 L. BÄCKERUD, G. CHAI: Solidification characteristics of aluminum alloys 3. American Foundry Society, Des Plaines, Illinois 1992.
14 N.A. BELOV, A.A. AKSENOV, D.G ESKIN: Iron in aluminium alloys. Taylor & Francis Inc, New York 2002.
15 PN-EN 10002-1+AC1. Metals. Standard method of tensile test at room temperature.
DOI :
Qute : Grzesik, W. ,Żak, K. ,Gessner, A. ,Staniek, R. ,Bartkowiak, T. ,Broshchak, I. ,Lutsiv, I. ,Hurey, I. ,Smardziova, M. ,Żak, K. ,Hurey, I. ,Gurey, V. ,Dmyterko, P. ,Babiarz, R. ,Nowotnik, A. ,Pędrak, P. ,Rokicki, P. ,Mrówka-Nowotnik, G. ,Sieniawski, J. ,Mrówka-Nowotnik, G. ,Sieniawski, J. ,Wierzbińska, M. ,Nowotnik, A. ,Nowotnik, A. , Microstructure and mechanical properties of silicon-free Al-Cu-Ni casting alloys used in heavy duty aircraft engine parts. Advances in Manufacturing Science and Technology Vol. 38, nr 3/2014
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Optimization of the heat treatment process of a steel porous charge using an integrated modelling

Czasopismo : Advances in Science and Technology Research Journal
Tytuł artykułu : Optimization of the heat treatment process of a steel porous charge using an integrated modelling

Autorzy :
Aramideh, J
Department of Computer Engineering, Sari Branch, Islamic Azad University, Sari, Iran, Aramideh. javad@gmail.com,
Jelodar, H
Department of Computer Engineering, Bushehr Branch, Islamic Azad University, Bushehr, Iran, JelodarH@gmail.com,
Sané, M
Semiconductors and Solar Energy Laboratory, Faculty of Science and Technique, Cheikh Anta Diop University, BP5005, Dakar, Senegal, moustaphasane2003@yahoo.fr,
Barro, F I
Semiconductors and Solar Energy Laboratory, Faculty of Science and Technique, Cheikh Anta Diop University, BP5005, Dakar, Senegal,,
Wyczółkowski, R.
Department of Industrial Furnaces and Environmental Protection, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland,
Benduch, A.
Department of Industrial Furnaces and Environmental Protection, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland, abenduch@wip.pcz.pl,
Abstrakty : The paper discusses the structure and principle of operation of programs for integrated modelling of the processes of heat treatment of porous-structure steel charges, such as long product bundles or strip or wire coils. Consideration is given to the specificity of these models in respect to porous charges. This is associated with their untypical thermal properties, which are expressed using the concept of effective thermal conductivity.

Słowa kluczowe : porous charge, heat treatment, integrated modelling, effective thermal conductivity,
Wydawnictwo : Oddział SIMP w Lublinie
Rocznik : 2014
Numer : Vol. 8, nr 24
Strony : 13 – 18
Bibliografia : 1. Mehta R., Sahay S.S.: Heat transfer mechanism and furnace productivity during coil annealing: aluminium vs. steel. Journal of Materials Engineering and Performance, Vol. 18(1), 2009, 8-15.
2. Rudnik S.: Physical metallurgy. PWN, Warszawa 1996 (in Polish).
3. Adrian H.: Numerical modeling heat treatment process. Wydawnictwa AGH, Kraków 2011 (in Polish).
4. Jaluria Y.: Numerical simulation of the transport process in a heat treatment furnace. International Journal for Numerical Methods in Engineering, 25, 1988, 387-399.
5. Rao T.R., Barth G.J., Miller J.R.: Computer model prediction of heating, soaking and cooking times in batch coil annealing. Iron and Steel Engineering, 60 (9), 1983, 22–33.
6. Sahay S.S., Kumar A.M.: Application of integrated batch annealing furnace simulator. Materials and Manufacturing Processes, Vol. 17 (4), 2002, 439–453.
7. Sahay S.S., Krishnan K.: Model based optimization of continuous annealing operation for bundle of packed rods. Ironmaking and Steelmaking, Vol. 34 (1), 2007, 89–94.
8. Sahay S., Mehta R., Krishnan K.: Genetic-algorithm-based optimization of an industrial age-hardening operation for packed bundles of aluminum rods. Materials and Manufacturing Processes, 22, 2007, 615–622.
9. Wyczółkowski R.: Integrated modeling heat treatment process of porous charge. In: A. Kawałek (ed.). Metallurgy, New technologies and achievements. Series: Monographs No 25, Częstochowa 2012, 40–50 (in Polish).
10. Wyczółkowski R.: Classification and characterization of porous charge found in the industrial heat treatment practice. Hutnik-Wiadomości Hutnicze, Vol. 12, 2012, 877–879 (in Polish).
11. Wyczółkowski R., Benduch A.: Effective thermal conductivity as primary thermal parameter of porous charge. In: XII Międzynarodowa Konferencja Naukowa „Nowe technologie w metalurgii i inżynierii materiałowej. Monografie nr 15, Częstochowa 2011 (in Polish).
12. Sahay S., Kumar M., Chatterjee A.: Development of integrated model for batch annealing of cold rolled steels. Ironmaking and Steelmaking, 2004, Vol. 31 (2), 144–152.
13. Wiśniewski S., Wiśniewski S.T.: Heat transfer. WNT, Warszawa 2012 (in Polish).
14.Piechowicz Ł., Wyczółkowski R., Łukaszek D.: Mathematical model of thermal process on the basis of installation to annealing coils of aluminum sheet. Report from investigatory project order by SECO/WARWICK ThermAL S.A., Świebodzin 2012.
15. Gdula S.J. (ed.): Heat conduction. PWN, Warszawa 1984 (in Polish).
16. Wyczółkowski R.: Selected problems connected with hating up of steel charge of porous structure. In: Metalurgia. Nowe technologie i osiągnięcia, Częstochowa 2009, 337–359 (in Polish).
17. Wyczółkowski R.: Modeling of the thermal properties of porous charge by application of the elementary cell concept. In: Wybrane zagadnienia produkcji i zarządzania w przedsiębiorstwie. Seria: Monografie nr 29, Częstochowa 2012, 54–65.
18. Przybyłowicz K.: Physical metallurgy. PWN, Warszawa 2007 (in Polish).
19. Sahay S.S., Kumar A.M.: Applications of integrated batch annealing furnace simulator. Materials and Manufacturing Processes, Vol. 17(4), 2002, 439–453.
DOI :
Cytuj : Aramideh, J ,Jelodar, H ,Sané, M ,Barro, F I ,Wyczółkowski, R. ,Benduch, A. , Optimization of the heat treatment process of a steel porous charge using an integrated modelling. Advances in Science and Technology Research Journal Vol. 8, nr 24/2014
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Journal : Advances in Science and Technology Research Journal
Article : Optimization of the heat treatment process of a steel porous charge using an integrated modelling

Authors :
Aramideh, J
Department of Computer Engineering, Sari Branch, Islamic Azad University, Sari, Iran, Aramideh. javad@gmail.com,
Jelodar, H
Department of Computer Engineering, Bushehr Branch, Islamic Azad University, Bushehr, Iran, JelodarH@gmail.com,
Sané, M
Semiconductors and Solar Energy Laboratory, Faculty of Science and Technique, Cheikh Anta Diop University, BP5005, Dakar, Senegal, moustaphasane2003@yahoo.fr,
Barro, F I
Semiconductors and Solar Energy Laboratory, Faculty of Science and Technique, Cheikh Anta Diop University, BP5005, Dakar, Senegal,,
Wyczółkowski, R.
Department of Industrial Furnaces and Environmental Protection, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland,
Benduch, A.
Department of Industrial Furnaces and Environmental Protection, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland, abenduch@wip.pcz.pl,
Abstract : The paper discusses the structure and principle of operation of programs for integrated modelling of the processes of heat treatment of porous-structure steel charges, such as long product bundles or strip or wire coils. Consideration is given to the specificity of these models in respect to porous charges. This is associated with their untypical thermal properties, which are expressed using the concept of effective thermal conductivity.

Keywords : porous charge, heat treatment, integrated modelling, effective thermal conductivity,
Publishing house : Oddział SIMP w Lublinie
Publication date : 2014
Number : Vol. 8, nr 24
Page : 13 – 18

Bibliography
: 1. Mehta R., Sahay S.S.: Heat transfer mechanism and furnace productivity during coil annealing: aluminium vs. steel. Journal of Materials Engineering and Performance, Vol. 18(1), 2009, 8-15.
2. Rudnik S.: Physical metallurgy. PWN, Warszawa 1996 (in Polish).
3. Adrian H.: Numerical modeling heat treatment process. Wydawnictwa AGH, Kraków 2011 (in Polish).
4. Jaluria Y.: Numerical simulation of the transport process in a heat treatment furnace. International Journal for Numerical Methods in Engineering, 25, 1988, 387-399.
5. Rao T.R., Barth G.J., Miller J.R.: Computer model prediction of heating, soaking and cooking times in batch coil annealing. Iron and Steel Engineering, 60 (9), 1983, 22–33.
6. Sahay S.S., Kumar A.M.: Application of integrated batch annealing furnace simulator. Materials and Manufacturing Processes, Vol. 17 (4), 2002, 439–453.
7. Sahay S.S., Krishnan K.: Model based optimization of continuous annealing operation for bundle of packed rods. Ironmaking and Steelmaking, Vol. 34 (1), 2007, 89–94.
8. Sahay S., Mehta R., Krishnan K.: Genetic-algorithm-based optimization of an industrial age-hardening operation for packed bundles of aluminum rods. Materials and Manufacturing Processes, 22, 2007, 615–622.
9. Wyczółkowski R.: Integrated modeling heat treatment process of porous charge. In: A. Kawałek (ed.). Metallurgy, New technologies and achievements. Series: Monographs No 25, Częstochowa 2012, 40–50 (in Polish).
10. Wyczółkowski R.: Classification and characterization of porous charge found in the industrial heat treatment practice. Hutnik-Wiadomości Hutnicze, Vol. 12, 2012, 877–879 (in Polish).
11. Wyczółkowski R., Benduch A.: Effective thermal conductivity as primary thermal parameter of porous charge. In: XII Międzynarodowa Konferencja Naukowa „Nowe technologie w metalurgii i inżynierii materiałowej. Monografie nr 15, Częstochowa 2011 (in Polish).
12. Sahay S., Kumar M., Chatterjee A.: Development of integrated model for batch annealing of cold rolled steels. Ironmaking and Steelmaking, 2004, Vol. 31 (2), 144–152.
13. Wiśniewski S., Wiśniewski S.T.: Heat transfer. WNT, Warszawa 2012 (in Polish).
14.Piechowicz Ł., Wyczółkowski R., Łukaszek D.: Mathematical model of thermal process on the basis of installation to annealing coils of aluminum sheet. Report from investigatory project order by SECO/WARWICK ThermAL S.A., Świebodzin 2012.
15. Gdula S.J. (ed.): Heat conduction. PWN, Warszawa 1984 (in Polish).
16. Wyczółkowski R.: Selected problems connected with hating up of steel charge of porous structure. In: Metalurgia. Nowe technologie i osiągnięcia, Częstochowa 2009, 337–359 (in Polish).
17. Wyczółkowski R.: Modeling of the thermal properties of porous charge by application of the elementary cell concept. In: Wybrane zagadnienia produkcji i zarządzania w przedsiębiorstwie. Seria: Monografie nr 29, Częstochowa 2012, 54–65.
18. Przybyłowicz K.: Physical metallurgy. PWN, Warszawa 2007 (in Polish).
19. Sahay S.S., Kumar A.M.: Applications of integrated batch annealing furnace simulator. Materials and Manufacturing Processes, Vol. 17(4), 2002, 439–453.
DOI :
Qute : Aramideh, J ,Jelodar, H ,Sané, M ,Barro, F I ,Wyczółkowski, R. ,Benduch, A. ,Benduch, A. , Optimization of the heat treatment process of a steel porous charge using an integrated modelling. Advances in Science and Technology Research Journal Vol. 8, nr 24/2014
[Top]

Heat treatment enhancement of natural orange-red sapphires

Czasopismo : Advances in Materials Science
Tytuł artykułu : Heat treatment enhancement of natural orange-red sapphires

Autorzy :
Beloglazov, G.
State University of Russia, Department of Chemistry, 236040 Kaliningrad, drgeorge59@mail.ru,
Ławrynowicz, Z.
University of Technology and Life Sciences, Mechanical Engineering Faculty, Department of Materials Science and Engineering, av. Kaliskiego 7, 85-789 Bydgoszcz, Poland, lawry@utp.edu.pl,
Bgasheva, T.
D. Mendeleyev University of Chemical Technology of Russia, Department of chemistry and technology of crystals, 125480, Geroev Panfilovtsev str. 20/1, Moscow, Russia, T.B@live.ru,
Abstrakty : Certain variety of Madagascar color sapphires (fancy sapphires) has orange-red color, which shades don't let to consider them as the rubies. Heat treatment experiments in reducing atmosphere were carried out on such sapphires for the purpose of improving their color characteristics. Chromium (III), iron (II and III), titanium (IV) chromophore impurities in natural corundum and chromophore centers with their participitation are considered. A special attention is paid to spectral characteristics of chromophore centers. Behavior of the chromophore centers under heat treatment and their influence on the color of fancy sapphires are studied. Color modification mechanism was proposed on the basis of microprobe and spectral analyses data. The proposed enhancement technique allows to improve color characteristics of fancy sapphires.

Słowa kluczowe : corundum, fancy sapphires, enhancement, heat treatment, chromophore center,
Wydawnictwo : Politechnika Gdańska
Rocznik : 2012
Numer : Vol.12, nr 2(32)
Strony : 31 – 44
Bibliografia : 1. Winotai P., Limsuwan P., Tang I.M., Limsuwan S.: Quality enhancement of Vietnamese ruby by heat treatments. Australian Gemmologist, 22 (2004), 72-77.
2. Бахтин А.И., Горобец Б.С.: Оптическая спектроскопия минералов и руд и ее применение в геологоразведочных работах. Изд-во Казан. ун-та, Казань, 1992.
3. Платонов А.Н., Таран М.Н., Балицкий В.С.: Природа окраски самоцветов. Недра, Москва, 1984.
4. Свиридов Д.Т., Свиридова Р.К., Смирнов Ю.Ф.: Оптические спектры ионов переходных металлов в кристаллах. Наука, Москва, 1976.
5. Lehmann G., Harder H.: Optical spectra of di- and trivalent iron in corundum. The American Mineralogist, 55 (1970), 98-105.
6. Nikolskaya L. V., Terekhova V. M., Samoilovich M. I.: On the origin of natural sapphire color. Physics and Chemistry of Minerals, 3 (1978), 213-224.
7. Burns R.G.: Intervalence Transitions in Mixed Valence Minerals of Iron and Titanium. Annual Review of Earth and Planetary Sciences, 9 (1981), 345-383.
8. Fontana I., Le Donne A., Palanza V., Binetti S., Spinolo G.: Optical spectroscopy study of type 1 natural and synthetic sapphires. Journal of Physics: Condensed Matter, 20 (2008), 125228-125232.
9. Eigenmann K., Gunthard Hs. H.: Valence states, redox reactions and biparticle formation of Fe and Ti doped sapphire. Chemical Physics Letters, 13 (1972), 58-61.
10. Townsend M.G.: Visible charge transfer band in blue sapphire. Solid State Communications, 6 (1968), 81-83.
11. Maxwell M.: The processing & heat treatment of Subera (Queensland) sapphire rough. Australian Gemmologist, 21 (2002), 279-286.
12. Emmett J.L., Douthit T.R.: Heat Treating the Sapphires of Rock Creek, Montana. Gems&Gemology, 29 (1993), 250-272.
13. Nassau K.: Gemstone Enhancement. Butterworth-Heinemann, Oxford , 1994.
14. Здорик Т.Б., Фельдман Л.Г.: Минералы и горные породы. Т. 1. (Ювелирные камни и драгоценные металлы). Энциклопедия природы России. ABF, Москва, 1998.
15. Peretti A., Guenther D.: The color enhancement of fancy sapphires with a new heat-treatment technique (Part A): Inducing color zoning by internal migration and formation of color centers. Contributions to Gemology, 11 (2002), 1-48.
16. Emmett J.L., Scarratt K., McClure S.F. et al.: Beryllium diffusion of ruby and sapphire. Gems&Gemology, 39 (2003), 84-135.
17. Bgasheva T.V., Akhmetshin E.A., Zharikov E.V.: Enhancement of colour characteristics of fancy sapphires by heat treatment in reducing condition. Proceedings of 30th International Gemmological Conference, Moscow, 2007, 23-24.
18. Марфунин А.С.: Введение в физику минералов. Недра, Москва, 1974.
19. Nassau K.: Irradiation-induced colors in gemstones. Gems&Gemology, 16 (1980), 343-355.
20. Ахметшин Э.А., Бгашева Т.В.: Влияние гамма- и электронного облучения на окраску цветных сапфиров. Материалы V Межвузовской научной конференции студентов, аспирантов и молодых ученых «Молодые – наукам о Земле», РГГРУ, Москва, 2010, 121.
21. Ахметшин Э.А., Бгашева Т.В.: Изучение влияния времени воздействия рабочих температур на облагораживание цветных сапфиров при термообработке. Горный информационно-аналитический бюллетень (научно-технический журнал), 1 (2009), 274-280.
22. Неуструев В.Б.: Исследование спектрально-люминесцентных свойств рубина как активной среды оптического квантового генератора. Центры люминесценции в кристаллах. Труды ФИАН, 796 (1974), 3-38.
23. McClure D.S.: Optical Spectra of Transition-Metal Ions in Corundum. Journal of Chemical Physics, 36 (1962), 2757-2779.
24. Achiwawanich S., James B.D., Liesegang J.: XPS and ToF-SIMS analysis of natural rubies and sapphires heat-treated in a reducing (5 mol% H2/Ar) atmosphere. Applied Surface Science, 255 (2008), 2388-2399.
DOI :
Cytuj : Beloglazov, G. ,Ławrynowicz, Z. ,Bgasheva, T. , Heat treatment enhancement of natural orange-red sapphires. Advances in Materials Science Vol.12, nr 2(32)/2012
[Top]

Journal : Advances in Materials Science
Article : Heat treatment enhancement of natural orange-red sapphires

Authors :
Beloglazov, G.
State University of Russia, Department of Chemistry, 236040 Kaliningrad, drgeorge59@mail.ru,
Ławrynowicz, Z.
University of Technology and Life Sciences, Mechanical Engineering Faculty, Department of Materials Science and Engineering, av. Kaliskiego 7, 85-789 Bydgoszcz, Poland, lawry@utp.edu.pl,
Bgasheva, T.
D. Mendeleyev University of Chemical Technology of Russia, Department of chemistry and technology of crystals, 125480, Geroev Panfilovtsev str. 20/1, Moscow, Russia, T.B@live.ru,
Abstract : Certain variety of Madagascar color sapphires (fancy sapphires) has orange-red color, which shades don't let to consider them as the rubies. Heat treatment experiments in reducing atmosphere were carried out on such sapphires for the purpose of improving their color characteristics. Chromium (III), iron (II and III), titanium (IV) chromophore impurities in natural corundum and chromophore centers with their participitation are considered. A special attention is paid to spectral characteristics of chromophore centers. Behavior of the chromophore centers under heat treatment and their influence on the color of fancy sapphires are studied. Color modification mechanism was proposed on the basis of microprobe and spectral analyses data. The proposed enhancement technique allows to improve color characteristics of fancy sapphires.

Keywords : corundum, fancy sapphires, enhancement, heat treatment, chromophore center,
Publishing house : Politechnika Gdańska
Publication date : 2012
Number : Vol.12, nr 2(32)
Page : 31 – 44

Bibliography
: 1. Winotai P., Limsuwan P., Tang I.M., Limsuwan S.: Quality enhancement of Vietnamese ruby by heat treatments. Australian Gemmologist, 22 (2004), 72-77.
2. Бахтин А.И., Горобец Б.С.: Оптическая спектроскопия минералов и руд и ее применение в геологоразведочных работах. Изд-во Казан. ун-та, Казань, 1992.
3. Платонов А.Н., Таран М.Н., Балицкий В.С.: Природа окраски самоцветов. Недра, Москва, 1984.
4. Свиридов Д.Т., Свиридова Р.К., Смирнов Ю.Ф.: Оптические спектры ионов переходных металлов в кристаллах. Наука, Москва, 1976.
5. Lehmann G., Harder H.: Optical spectra of di- and trivalent iron in corundum. The American Mineralogist, 55 (1970), 98-105.
6. Nikolskaya L. V., Terekhova V. M., Samoilovich M. I.: On the origin of natural sapphire color. Physics and Chemistry of Minerals, 3 (1978), 213-224.
7. Burns R.G.: Intervalence Transitions in Mixed Valence Minerals of Iron and Titanium. Annual Review of Earth and Planetary Sciences, 9 (1981), 345-383.
8. Fontana I., Le Donne A., Palanza V., Binetti S., Spinolo G.: Optical spectroscopy study of type 1 natural and synthetic sapphires. Journal of Physics: Condensed Matter, 20 (2008), 125228-125232.
9. Eigenmann K., Gunthard Hs. H.: Valence states, redox reactions and biparticle formation of Fe and Ti doped sapphire. Chemical Physics Letters, 13 (1972), 58-61.
10. Townsend M.G.: Visible charge transfer band in blue sapphire. Solid State Communications, 6 (1968), 81-83.
11. Maxwell M.: The processing & heat treatment of Subera (Queensland) sapphire rough. Australian Gemmologist, 21 (2002), 279-286.
12. Emmett J.L., Douthit T.R.: Heat Treating the Sapphires of Rock Creek, Montana. Gems&Gemology, 29 (1993), 250-272.
13. Nassau K.: Gemstone Enhancement. Butterworth-Heinemann, Oxford , 1994.
14. Здорик Т.Б., Фельдман Л.Г.: Минералы и горные породы. Т. 1. (Ювелирные камни и драгоценные металлы). Энциклопедия природы России. ABF, Москва, 1998.
15. Peretti A., Guenther D.: The color enhancement of fancy sapphires with a new heat-treatment technique (Part A): Inducing color zoning by internal migration and formation of color centers. Contributions to Gemology, 11 (2002), 1-48.
16. Emmett J.L., Scarratt K., McClure S.F. et al.: Beryllium diffusion of ruby and sapphire. Gems&Gemology, 39 (2003), 84-135.
17. Bgasheva T.V., Akhmetshin E.A., Zharikov E.V.: Enhancement of colour characteristics of fancy sapphires by heat treatment in reducing condition. Proceedings of 30th International Gemmological Conference, Moscow, 2007, 23-24.
18. Марфунин А.С.: Введение в физику минералов. Недра, Москва, 1974.
19. Nassau K.: Irradiation-induced colors in gemstones. Gems&Gemology, 16 (1980), 343-355.
20. Ахметшин Э.А., Бгашева Т.В.: Влияние гамма- и электронного облучения на окраску цветных сапфиров. Материалы V Межвузовской научной конференции студентов, аспирантов и молодых ученых «Молодые – наукам о Земле», РГГРУ, Москва, 2010, 121.
21. Ахметшин Э.А., Бгашева Т.В.: Изучение влияния времени воздействия рабочих температур на облагораживание цветных сапфиров при термообработке. Горный информационно-аналитический бюллетень (научно-технический журнал), 1 (2009), 274-280.
22. Неуструев В.Б.: Исследование спектрально-люминесцентных свойств рубина как активной среды оптического квантового генератора. Центры люминесценции в кристаллах. Труды ФИАН, 796 (1974), 3-38.
23. McClure D.S.: Optical Spectra of Transition-Metal Ions in Corundum. Journal of Chemical Physics, 36 (1962), 2757-2779.
24. Achiwawanich S., James B.D., Liesegang J.: XPS and ToF-SIMS analysis of natural rubies and sapphires heat-treated in a reducing (5 mol% H2/Ar) atmosphere. Applied Surface Science, 255 (2008), 2388-2399.
DOI :
Qute : Beloglazov, G. ,Ławrynowicz, Z. ,Bgasheva, T. ,Bgasheva, T. , Heat treatment enhancement of natural orange-red sapphires. Advances in Materials Science Vol.12, nr 2(32)/2012
[Top]

Wieloetapowa obróbka cieplna – nowy, skuteczny sposób rozdrabniania ziarna stopów na osnowie fazy międzymetalicznej TiAl

Czasopismo : Advances in Materials Science
Tytuł artykułu : Wieloetapowa obróbka cieplna – nowy, skuteczny sposób rozdrabniania ziarna stopów na osnowie fazy międzymetalicznej TiAl

Autorzy :
Adamus, J.
Częstochowa University of Technology, Faculty of Mechanical Engineering and Computer Sciences, Częstochowa, Poland,
Deptuła, P.
Białystok Technical University, Department of Mechanical Engineering, Białystok, Poland,
Januś, M.
Akademia Górniczo – Hutnicza; Wydział Inżynierii Materiałowej i Ceramiki, Kraków, Polska,
Kierzkowska, A.
Uniwersytet Zielonogórski, Wydział Mechaniczny, Zielona Góra, Polska,
Kościelna, A.
Politechnika Śląska, Wydział Inżynierii Materiałowej i Metalurgii, Katedra Nauki o Materiałach, Katowice, Polska,
Abstrakty : W pracy zaprezentowano nowy, skuteczny sposób rozdrabniania ziarna gruboziarnistych dwufazowych stopów na osnowie fazy międzymetalicznej TiAI, wyłącznie zabiegami wieloetapowej obróbki cieplnej. Analizowano wpływ poszczególnych parametrów każdego etapu obróbki na efekt rozdrobnienia ziarna oraz niektóre właściwości stopu Ti-48A1-2Cr-2Nb. Stwierdzono, że poprzez odpowiedni dobór parametrów cyklicznej obróbki cieplnej możliwe jest ok. 3krotne rozdrobnienia ziarna stopu, będące wynikiem przemian zachodzących podczas wielokrotnej realizacji cyklu nagrzewania do temperatury obszaru jednofazowego ' i chłodzenia do temperatury pokojowej. Zauważono także, że przeprowadzenie po cyklicznej obróbce cieplnej długotrwałego wyżarzania niezupełnego w zakresie temperatury obszaru dwufazowego prowadzi do kolejnego, ok. 3krotnego rozdrobnienia ziarna w porównaniu do stanu po cyklicznej obróbce cieplnej, związanego z występowaniem w tych warunkach procesu pogrubiania nieciągłego. Stwierdzono pozytywny wpływ krótkotrwałego wyżarzania zupełnego w zakresie obszaru jednofazowego na zmniejszenie grubości płytek w obrębie ziaren, wymaganej dla prawidłowego ukształtowania właściwości stopu. Skuteczność proponowanej, autorskiej wieloetapowej obróbki cieplnej potwierdzono na półwyrobach i gotowych wyrobach wykonanych ze stopów na osnowie fazy międzymetalicznej TiAl.

In this work presented a new efficient way for grain regining of coarse gram two-phase TiAl based alloys merely by multi-stage heat treatment The effect of particular parameters of every beat treatment stage was analyzed on gram refinement and some properties of Ti-48A1-2Cr-2Nb alloy. It was found, that by suitable selection of cyclic heat treatment parameters is possible to obtain 3-fold alloy grain refining. It is result of phase transformation setting during multiple realization of heating to alpha phase temperature area and cooling to room temperature. It was observed also that realization of under annealing after cyclic heat treatment results in further over 3-fold gram refinement compared to state after cyclic heat treatment. It is connect with occurrence at these conditions the discontinuous coarsening process. It was affirmed a positive influence of short full annealing conducted in temperature range of alpha phase on decrease of lamellar spacing required for properly forming of alloys properties. Efficiency of proposed complimentary, multi-stage heat treatment was confirmed on semi-finish and finish products made on TiAl intermetallic phase based alloys.

Słowa kluczowe : stopy na osnowie TiAl, obróbka cieplna, rozdrobnienie ziarna, TiAI based alloys, heat treatment, grain refinement,
Wydawnictwo : Politechnika Gdańska
Rocznik : 2007
Numer : Vol. 7, nr 4(14)
Strony : 34 – 43
Bibliografia : 1. Djanarthany S., Viala J.-C., Bouix J.: An overview of monolithic titanium aluminides based on Ti3A1 and TiAl. Materials Chemistry and Physics 72 (2001) 301-319.
2. Leyens C., Peters M(ed.): Titanium and Titanium Alloys. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 2003.
3. Kuang J. P., Harding R. A., Campbell J.: Microstructures and properties of investment castings of y-titanium aluminide. Materials Science and Engineering A329-331 (2002) 31-37.
4. Lapin J., Nazmy M.: Microstructure and creep properties of a cast intermetallic Ti-46A1-2W-0.5Si alloy for gas turbine applications. Materials Science and Engineering Al-2 (2004) 298-307.
5. Henaff G., Gloanec A.: Fatigue properties of TiAI alloys. Intermetallics 5 (2005) 543-558.
6. Stoloff N. S., Liu C. T., Deevi S. C.: Emerging applications of intermetallics. Intermetallics 9-11 (2000) 1313-1320.
7. Król S.: Utlenianie stopów Ti-Al na osnowie faz międzymetalicznych. Studia i Monografie, z. 188, Oficyna Wydawnicza Politechniki Opolskiej, Opole 2006.
8. Kim Y.-W.: Effects of microstructure on the deformation and fracture of γ-TiAl alloys. Materials Science and Engineering Al 92/l93 (1995) 519-533.
9. Maruyama K., Yamamoto R., Nakakuki H., Fujitsuna N.: Effects of lamellar spacing, volume fraction and gram size on creep strength of fully lamellar TiAl alloys. Materials Science and Engineering A239-240 (1997) 419-428.
10. Clemens H., Appel F., Bartels A.: Processing and application of engineering r-TiAl based alloys. Ti-2003 Science and Technology, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 2004,2123-2137.
11. Szkliniarz W.: Doświadczenia w zakresie wytwarzania i przetwarzania stopów na osnowie fazy międzymetalicznej TiAl. Inżynieria Materiałowa 2 (2007) 47-53.
DOI :
Cytuj : Adamus, J. ,Deptuła, P. ,Januś, M. ,Kierzkowska, A. ,Kościelna, A. , Wieloetapowa obróbka cieplna – nowy, skuteczny sposób rozdrabniania ziarna stopów na osnowie fazy międzymetalicznej TiAl. Advances in Materials Science Vol. 7, nr 4(14)/2007
[Top]

Multi-stage heat treatment – a new, efficient way for grain refining of TiAl based alloys

Journal : Advances in Materials Science
Article : Wieloetapowa obróbka cieplna – nowy, skuteczny sposób rozdrabniania ziarna stopów na osnowie fazy międzymetalicznej TiAl

Authors :
Adamus, J.
Częstochowa University of Technology, Faculty of Mechanical Engineering and Computer Sciences, Częstochowa, Poland,
Deptuła, P.
Białystok Technical University, Department of Mechanical Engineering, Białystok, Poland,
Januś, M.
Akademia Górniczo – Hutnicza; Wydział Inżynierii Materiałowej i Ceramiki, Kraków, Polska,
Kierzkowska, A.
Uniwersytet Zielonogórski, Wydział Mechaniczny, Zielona Góra, Polska,
Kościelna, A.
Politechnika Śląska, Wydział Inżynierii Materiałowej i Metalurgii, Katedra Nauki o Materiałach, Katowice, Polska,
Abstract : W pracy zaprezentowano nowy, skuteczny sposób rozdrabniania ziarna gruboziarnistych dwufazowych stopów na osnowie fazy międzymetalicznej TiAI, wyłącznie zabiegami wieloetapowej obróbki cieplnej. Analizowano wpływ poszczególnych parametrów każdego etapu obróbki na efekt rozdrobnienia ziarna oraz niektóre właściwości stopu Ti-48A1-2Cr-2Nb. Stwierdzono, że poprzez odpowiedni dobór parametrów cyklicznej obróbki cieplnej możliwe jest ok. 3krotne rozdrobnienia ziarna stopu, będące wynikiem przemian zachodzących podczas wielokrotnej realizacji cyklu nagrzewania do temperatury obszaru jednofazowego ' i chłodzenia do temperatury pokojowej. Zauważono także, że przeprowadzenie po cyklicznej obróbce cieplnej długotrwałego wyżarzania niezupełnego w zakresie temperatury obszaru dwufazowego prowadzi do kolejnego, ok. 3krotnego rozdrobnienia ziarna w porównaniu do stanu po cyklicznej obróbce cieplnej, związanego z występowaniem w tych warunkach procesu pogrubiania nieciągłego. Stwierdzono pozytywny wpływ krótkotrwałego wyżarzania zupełnego w zakresie obszaru jednofazowego na zmniejszenie grubości płytek w obrębie ziaren, wymaganej dla prawidłowego ukształtowania właściwości stopu. Skuteczność proponowanej, autorskiej wieloetapowej obróbki cieplnej potwierdzono na półwyrobach i gotowych wyrobach wykonanych ze stopów na osnowie fazy międzymetalicznej TiAl.

In this work presented a new efficient way for grain regining of coarse gram two-phase TiAl based alloys merely by multi-stage heat treatment The effect of particular parameters of every beat treatment stage was analyzed on gram refinement and some properties of Ti-48A1-2Cr-2Nb alloy. It was found, that by suitable selection of cyclic heat treatment parameters is possible to obtain 3-fold alloy grain refining. It is result of phase transformation setting during multiple realization of heating to alpha phase temperature area and cooling to room temperature. It was observed also that realization of under annealing after cyclic heat treatment results in further over 3-fold gram refinement compared to state after cyclic heat treatment. It is connect with occurrence at these conditions the discontinuous coarsening process. It was affirmed a positive influence of short full annealing conducted in temperature range of alpha phase on decrease of lamellar spacing required for properly forming of alloys properties. Efficiency of proposed complimentary, multi-stage heat treatment was confirmed on semi-finish and finish products made on TiAl intermetallic phase based alloys.

Keywords : stopy na osnowie TiAl, obróbka cieplna, rozdrobnienie ziarna, TiAI based alloys, heat treatment, grain refinement,
Publishing house : Politechnika Gdańska
Publication date : 2007
Number : Vol. 7, nr 4(14)
Page : 34 – 43

Bibliography
: 1. Djanarthany S., Viala J.-C., Bouix J.: An overview of monolithic titanium aluminides based on Ti3A1 and TiAl. Materials Chemistry and Physics 72 (2001) 301-319.
2. Leyens C., Peters M(ed.): Titanium and Titanium Alloys. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 2003.
3. Kuang J. P., Harding R. A., Campbell J.: Microstructures and properties of investment castings of y-titanium aluminide. Materials Science and Engineering A329-331 (2002) 31-37.
4. Lapin J., Nazmy M.: Microstructure and creep properties of a cast intermetallic Ti-46A1-2W-0.5Si alloy for gas turbine applications. Materials Science and Engineering Al-2 (2004) 298-307.
5. Henaff G., Gloanec A.: Fatigue properties of TiAI alloys. Intermetallics 5 (2005) 543-558.
6. Stoloff N. S., Liu C. T., Deevi S. C.: Emerging applications of intermetallics. Intermetallics 9-11 (2000) 1313-1320.
7. Król S.: Utlenianie stopów Ti-Al na osnowie faz międzymetalicznych. Studia i Monografie, z. 188, Oficyna Wydawnicza Politechniki Opolskiej, Opole 2006.
8. Kim Y.-W.: Effects of microstructure on the deformation and fracture of γ-TiAl alloys. Materials Science and Engineering Al 92/l93 (1995) 519-533.
9. Maruyama K., Yamamoto R., Nakakuki H., Fujitsuna N.: Effects of lamellar spacing, volume fraction and gram size on creep strength of fully lamellar TiAl alloys. Materials Science and Engineering A239-240 (1997) 419-428.
10. Clemens H., Appel F., Bartels A.: Processing and application of engineering r-TiAl based alloys. Ti-2003 Science and Technology, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 2004,2123-2137.
11. Szkliniarz W.: Doświadczenia w zakresie wytwarzania i przetwarzania stopów na osnowie fazy międzymetalicznej TiAl. Inżynieria Materiałowa 2 (2007) 47-53.
DOI :
Qute : Adamus, J. ,Deptuła, P. ,Januś, M. ,Kierzkowska, A. ,Kościelna, A. ,Kościelna, A. , Wieloetapowa obróbka cieplna – nowy, skuteczny sposób rozdrabniania ziarna stopów na osnowie fazy międzymetalicznej TiAl. Advances in Materials Science Vol. 7, nr 4(14)/2007
[Top]

Practical aspects of structural tests of titanium steel bonds made by explosive cladding and exposed to thermal process loads

Czasopismo : Advances in Materials Science
Tytuł artykułu : Practical aspects of structural tests of titanium steel bonds made by explosive cladding and exposed to thermal process loads

Autorzy :
Adamus, J.
Częstochowa University of Technology, Faculty of Mechanical Engineering and Computer Sciences, Częstochowa, Poland,
Deptuła, P.
Białystok Technical University, Department of Mechanical Engineering, Białystok, Poland,
Januś, M.
Akademia Górniczo – Hutnicza; Wydział Inżynierii Materiałowej i Ceramiki, Kraków, Polska,
Kierzkowska, A.
Uniwersytet Zielonogórski, Wydział Mechaniczny, Zielona Góra, Polska,
Kościelna, A.
Politechnika Śląska, Wydział Inżynierii Materiałowej i Metalurgii, Katedra Nauki o Materiałach, Katowice, Polska,
Kozioł, R.
WSK “PZL- Rzeszów” S.A., Rzeszów, Poland,
Król, S.
Politechnika Opolska, Katedra Materiałoznawstwa i Technologii Bezwiórowych Opole, Poland,
Abstrakty : Results of such tests are applied as a basis for appropriate evaluation of the quality of titanium-steel bonds manufactured by explosive cladding of big size metal plates. Performed simulated heat treatments of model titanium-steel elements have been described in details with the view of their industrial applications. Basing on performed macro- and microstructural tests as well as on related tests on mechanical and technological properties we have presented an impact of heat treatments on properties of titanium-steel bond, bonding zone and on constituent metals.

Słowa kluczowe : titanium, steel, explosive cladding, heat treatment, structural transformation,
Wydawnictwo : Politechnika Gdańska
Rocznik : 2007
Numer : Vol. 7, nr 4(14)
Strony : 50 – 56
Bibliografia : 1. Król S., Szulc Z, A. Gałka.: Platerowanie wybuchowe, jako podstawowa technologia wytwarzania materiałów bimetalicznych z tytanem. VIII Ogólnopolskie Sympozjum „Tytan i jego stopy – Przetwórstwo i zastosowanie w technice”, Warszawa – Serock, 2005, s.151-158.
2. Król S.: Heat treatment of explosively welded bimetallic clad materials, Welding International, 12, 5, 1991, s. 944-948.
3. Król S.: Mechanizm i kinetyka utleniania tytanu oraz wybranych stopów tytanu.
4. Bański R., Szulc Z., Gałka A., Ćiźek L..: Wpływ prędkości detonacji na właściwości złącz wielkoformatowych blach platerowanych tytanem. XX Międzyn. Sympozjum „Metody oceny struktury oraz własności materiałów i wyrobów”, Rożnov 2006.
5. Król S., Szulc Z., Górecki J.: Przemiany zachodzące podczas obróbki cieplnej tri metalu stal-tytan-aluminium. XVIII Międzyn. Sympozjum “Metody oceny struktury oraz własności materiałów i wyrobów”, Svratka 2003.
6. Król S., Szulc Z., Tomaszewski A.: Platerowanie wybuchowe ścian sitowych wymienników ciepła, Inżynieria i aparatura chemiczna Nr 3/88.
7. Oh M.S., Park J. K.:”Effect of Fe and O on the Continuous Cooling Beta to Alpha Transformation Behaviors of Piure Ti”,10th World Conference on Titanium. Ti-2003 Science and Technology. Hamburg 13-18.07, 2003. Weinheim: Wiley-Vch Verlag GmbH & Co. KGaA 2004, s.1099-1105, Deutsche Gesellschaft Materialkunde.
DOI :
Cytuj : Adamus, J. ,Deptuła, P. ,Januś, M. ,Kierzkowska, A. ,Kościelna, A. ,Kozioł, R. ,Król, S. , Practical aspects of structural tests of titanium steel bonds made by explosive cladding and exposed to thermal process loads. Advances in Materials Science Vol. 7, nr 4(14)/2007
[Top]

Journal : Advances in Materials Science
Article : Practical aspects of structural tests of titanium steel bonds made by explosive cladding and exposed to thermal process loads

Authors :
Adamus, J.
Częstochowa University of Technology, Faculty of Mechanical Engineering and Computer Sciences, Częstochowa, Poland,
Deptuła, P.
Białystok Technical University, Department of Mechanical Engineering, Białystok, Poland,
Januś, M.
Akademia Górniczo – Hutnicza; Wydział Inżynierii Materiałowej i Ceramiki, Kraków, Polska,
Kierzkowska, A.
Uniwersytet Zielonogórski, Wydział Mechaniczny, Zielona Góra, Polska,
Kościelna, A.
Politechnika Śląska, Wydział Inżynierii Materiałowej i Metalurgii, Katedra Nauki o Materiałach, Katowice, Polska,
Kozioł, R.
WSK “PZL- Rzeszów” S.A., Rzeszów, Poland,
Król, S.
Politechnika Opolska, Katedra Materiałoznawstwa i Technologii Bezwiórowych Opole, Poland,
Abstract : Results of such tests are applied as a basis for appropriate evaluation of the quality of titanium-steel bonds manufactured by explosive cladding of big size metal plates. Performed simulated heat treatments of model titanium-steel elements have been described in details with the view of their industrial applications. Basing on performed macro- and microstructural tests as well as on related tests on mechanical and technological properties we have presented an impact of heat treatments on properties of titanium-steel bond, bonding zone and on constituent metals.

Keywords : titanium, steel, explosive cladding, heat treatment, structural transformation,
Publishing house : Politechnika Gdańska
Publication date : 2007
Number : Vol. 7, nr 4(14)
Page : 50 – 56

Bibliography
: 1. Król S., Szulc Z, A. Gałka.: Platerowanie wybuchowe, jako podstawowa technologia wytwarzania materiałów bimetalicznych z tytanem. VIII Ogólnopolskie Sympozjum „Tytan i jego stopy – Przetwórstwo i zastosowanie w technice”, Warszawa – Serock, 2005, s.151-158.
2. Król S.: Heat treatment of explosively welded bimetallic clad materials, Welding International, 12, 5, 1991, s. 944-948.
3. Król S.: Mechanizm i kinetyka utleniania tytanu oraz wybranych stopów tytanu.
4. Bański R., Szulc Z., Gałka A., Ćiźek L..: Wpływ prędkości detonacji na właściwości złącz wielkoformatowych blach platerowanych tytanem. XX Międzyn. Sympozjum „Metody oceny struktury oraz własności materiałów i wyrobów”, Rożnov 2006.
5. Król S., Szulc Z., Górecki J.: Przemiany zachodzące podczas obróbki cieplnej tri metalu stal-tytan-aluminium. XVIII Międzyn. Sympozjum “Metody oceny struktury oraz własności materiałów i wyrobów”, Svratka 2003.
6. Król S., Szulc Z., Tomaszewski A.: Platerowanie wybuchowe ścian sitowych wymienników ciepła, Inżynieria i aparatura chemiczna Nr 3/88.
7. Oh M.S., Park J. K.:”Effect of Fe and O on the Continuous Cooling Beta to Alpha Transformation Behaviors of Piure Ti”,10th World Conference on Titanium. Ti-2003 Science and Technology. Hamburg 13-18.07, 2003. Weinheim: Wiley-Vch Verlag GmbH & Co. KGaA 2004, s.1099-1105, Deutsche Gesellschaft Materialkunde.
DOI :
Qute : Adamus, J. ,Deptuła, P. ,Januś, M. ,Kierzkowska, A. ,Kościelna, A. ,Kozioł, R. ,Król, S. ,Król, S. , Practical aspects of structural tests of titanium steel bonds made by explosive cladding and exposed to thermal process loads. Advances in Materials Science Vol. 7, nr 4(14)/2007
[Top]

Journal : Advances in Materials Science
Article : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Authors :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstract : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Keywords : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Publishing house : Politechnika Gdańska
Publication date : 2001
Number : Vol. 1, nr 1(1)
Page : 74 – 78

Bibliography
:
DOI :
Qute : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
[Top]

Journal : Advances in Materials Science
Article : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Authors :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstract : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Keywords : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Publishing house : Politechnika Gdańska
Publication date : 2001
Number : Vol. 1, nr 1(1)
Page : –

Bibliography
:
DOI :
Qute : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
[Top]

Journal : Advances in Materials Science
Article : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Authors :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstract : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Keywords : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Publishing house : Politechnika Gdańska
Publication date : 2001
Number : Vol. 1, nr 1(1)
Page : –

Bibliography
:
DOI :
Qute : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
[Top]

Journal : Advances in Materials Science
Article : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Authors :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstract : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Keywords : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Publishing house : Politechnika Gdańska
Publication date : 2001
Number : Vol. 1, nr 1(1)
Page : –

Bibliography
:
DOI :
Qute : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
[Top]

Journal : Advances in Materials Science
Article : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Authors :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstract : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Keywords : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Publishing house : Politechnika Gdańska
Publication date : 2001
Number : Vol. 1, nr 1(1)
Page : –

Bibliography
:
DOI :
Qute : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
[Top]

The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Czasopismo : Advances in Materials Science
Tytuł artykułu : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Autorzy :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstrakty : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Słowa kluczowe : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Wydawnictwo : Politechnika Gdańska
Rocznik : 2001
Numer : Vol. 1, nr 1(1)
Strony : –
Bibliografia :
DOI :
Cytuj : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
[Top]

Journal : Advances in Materials Science
Article : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Authors :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstract : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Keywords : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Publishing house : Politechnika Gdańska
Publication date : 2001
Number : Vol. 1, nr 1(1)
Page : –

Bibliography
:
DOI :
Qute : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
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Journal : Advances in Materials Science
Article : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Authors :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstract : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Keywords : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Publishing house : Politechnika Gdańska
Publication date : 2001
Number : Vol. 1, nr 1(1)
Page : –

Bibliography
:
DOI :
Qute : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
[Top]

Journal : Advances in Materials Science
Article : The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements

Authors :
Davies, H.A.
Department of Engineering Materials, University of Sheffield, United Kingdom,
Pomogailo, A.D.
Institute of Problem of Chemical Physics, Russian Academy of Sciences Cher-nogolovka, Russia,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Gireń, B.G.
Institute of Fluid-Flow Machinery Polish Academy of Science, Poland,
Hucińska, J.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Imielińska, K.
Faculty of Mechanical Engineering, Technical University of Gdańsk, Poland,
Krella, A.
Institute of Fluid-Flow Machinery, Polish Academy of Science, Poland,
Pacyna, J.
University of Mining and Metallurgy, Cracow, Poland,
Abstract : The investigations were performed by means of the dilatometric method on two model alloys of almost similar chemical compositions but of differentiated concentration of vanadium (0.14 and 0.77%). The samples of each alloy were austenitized at the temperatures, when almost all vanadium carbides of MC type remained undissolved, and at the temperatures of dissolving of MC carbides when entire vanadium passed into austenite. It was observed that vanadium bound into MC carbides affects weakly the kinetics of transformations of the undercooled austenite and its influence is much stronger when it is completely dissolved in the solution (austenite).

Keywords : investigation method, heat treatment, concentration of vanadium, undercooled austenite,
Publishing house : Politechnika Gdańska
Publication date : 2001
Number : Vol. 1, nr 1(1)
Page : –

Bibliography
:
DOI :
Qute : Davies, H.A. ,Pomogailo, A.D. ,Gireń, B.G. ,Gireń, B.G. ,Hucińska, J. ,Imielińska, K. ,Krella, A. ,Pacyna, J. ,Pacyna, J. , The effect of vanadium on the kinetics of phase transformations of undercooled austenite in the steels of low content of other elements. Advances in Materials Science Vol. 1, nr 1(1)/2001
[Top]