ISSN: 0354-7965; eISSN: 3042-3163; UDC: 621.791; DOI: 10.65156

Welding and welded structures, 2023, Vol. 68, Issue 1, pp. 23-28


Influence of changes in the microstructure of the welded joint due to friction stir welding of aluminium alloys 2024 and 5083 on the electrical conductivity and electrochemical parameters in corrosive environments

Mandić Jovana1, a, Mladenović Maja1, Lazić Dragana1, Radisavljević Igor1, Glišić Dragomir2, Ilić Nada1

  • 1Military Technical Institute, Ratka Resanovića 1, 11000 Beograd, Republic of Serbia
  • 2University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11120 Beograd, Republic of Serbia

  • Emailajmandic96@gmail.com

Abstract

In this paper physical and metallographic properties of a dissimilar aluminium alloy friction stirwelded joint (FSW) of nonheat treated aluminium alloy 5083Н111 as well as heat treated aluminium alloy 2024Т351 are examined. The chosen tool for welding had a standard screw thread radius, and for the welding parameters the ratio R/v = 750/73 was chosen. In order to determine the change in electrical conductivity and electrochemical parameters of the base materials and the welded joint in corrosive environments depending on the change in microstructure due to welding, metallographic analysis of the welded joint on an optical microscope was performed, and electrical conductivity and electrochemical parameters of the base material and the welded joint were also examined.


Keywords

friction stir welding, weld characterization, alloy 2024Т351, alloy 5083Н111


Acknowledgements

The paper was published in its original form in the Proceedings of the 32nd Conference with international participation "Welding 2022" held in Tara, Serbia from October 12 to 15, 2022.


References

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