Influence of friction stir welding on corrosion properties of Aw-7020M alloy in sea water

Czasopismo : Advances in Materials Science
Tytuł artykułu : Influence of friction stir welding on corrosion properties of Aw-7020M alloy in sea water

Autorzy :
Dudzik, K.
Gdynia Maritime University, Faculty of Marine Engineering, Marine Maintenance Department, Gdynia, Poland,
Jurczak, W.
Polish Naval Academy, Mechanical – Electrical Faculty, Gdynia, Poland, wjurczak@amw.gdynia.pl,
Abstrakty : Friction Stir Welding (FSW), provides an alternative to MIG and TIG welding methods for joining aluminium alloys. The article presents the results of electrochemical corrosion resistance test of alloy AW- 7020M and its joints welded by FSW. The study was performed using the method of electrochemical impedance spectroscopy (EIS). Impedance spectroscopy studies showed that both, the FSW welded joint and base material AW-7020M has a good resistance to electrochemical corrosion in sea water environment, wherein the welded joint has a higher susceptibility to this type of corrosion. Research has indicated the desirability of applying the FSW method for joining AW-7020M alloy in shipbuilding industry.

Słowa kluczowe : impedancja elektrochemiczna spektroskopii, EIS, Stopy glinu, korozja, schody łączenia, electrochemical impedance spectroscopy, EIS, aluminium alloys, corrosion, FSW joining,
Wydawnictwo : Politechnika Gdańska
Rocznik : 2015
Numer : Vol.15, nr 1(43)
Strony : 7 – 13
Bibliografia : 1. Cudny K., Puchaczewski N.: Alloys on ship hulls and Ocean Engineering Objects in Polish, Gdańsk University of Technology Publishing House, Gdańsk 1995.
2. Jurczak W.: Problems and prospects of the use of aluminum alloys for marine structures in Polish, Naval Academy Scientific Papers, Gdynia, 4, 183, 2010.
3. Ferraris S, Volpone L.M.: Aluminium alloys in third millennium shipbuilding: materials, technologies, perspectives, The Fifth International Forum on Aluminium Ships, Tokyo, Japan 2005.
4. Lahti K.: FSW – possibilities in shipbuilding, Svetsaren, The ESAB Welding and Cutting Journal, Vol. 58, 1, 2003.
5. Pietras A., Zadroga L., Łomozik M.: Characteristics of the weld formed by friction stir welding (FSW) in Polish, Bulletin of the Institute of Welding in Gliwice, 3, 2003.
6. Czechowski M.: Effect of anodic polarization on stress corrosion cracking of some aluminium alloys, Advances in Materials Science, Vol 7, 1(11) (2007), 13-20
7. Czechowski M.: Low-cycle fatigue of friction stir welded Al-Mg alloys. Journal of Materials Processing Technology, 164-165 (2005), 1001-1006.
8. Dudzik K., Czechowski M.: Analysis of possible shipbuilding application of Friction Stir Welding (FSW) method to joining elements made of AlZn5Mg1 alloy, Polish Maritime Research, 4, 2009.
9. Sharma C., Dwivedi D. K., Kumar P.: Effect of welding parameters on microstructure and mechanical properties of friction stir welded joints of AA7039 aluminum alloy, Materials and Design, 36, 2012.
10. Squillace A., De Fenzo A., Giorleo G., Bellucci F.: A comparison between FSW and TIG welding techniques: modifications of microstructure and pitting corrosion resistance in AA 2024-T3 butt joints, Journal of Materials Processing Technology, 152, 2004.
11. Dudzik K., Charchalis A.: EIS Research of AW-7020 Alloy Joints Welded by FSW, Solid State Phenomena, Trans Tech Publications, Switzerland, Mechatronic Systems and Materials V, 2013.
12. Starosta R.: Corrosion of Ni-Al and Ni-Al-Al2O3 flame sprayed coatings of “Casto-Dyn 8000” system in 0.01 M H2SO4 and 3.5% NaCl solution. Solid State Phenomena vol. 183, 2012.
13. Trzaska M., Trzaska Z.: Electrochemical impedance spectroscopy in materials science in Polish, Warsaw University of Technology Publishing House, Warszawa 2010.
DOI :
Cytuj : Dudzik, K. ,Jurczak, W. , Influence of friction stir welding on corrosion properties of Aw-7020M alloy in sea water. Advances in Materials Science Vol.15, nr 1(43)/2015
facebook