Impact of age hardening on the corrosion characteristics of dissimilar aluminum alloys welded using an innovative MIG welding approach

  • Sahil Garg GRD Centre for Materials Research, Department of Physics, PSG College of Technology, Coimbatore- 641004, Tamil Nadu, India
  • Arulpandian Palanisamy Department of Mechanical Engineering, Sri Shakthi Institute of Engineering and Technology, Coimbatore, Tamil Nadu, India
Keywords: MIG welding, Tafel polarization analysis, Corrosion Assessment, Heat Treatment, Scanning Electron Microscopy (SEM)


An innovative metal transfer technique in MIG welding was utilized to join aluminum-based alloys such as 6061 and 5083. Following welding, the specimens underwent heat treatment to explore their corrosion resistance by modifying their microstructure. Tafel polarization curve analysis was employed to evaluate the corrosion performance of the weld zone. The findings indicated that finer microstructures in the weldment led to a notable shift towards less negative corrosion potentials compared to coarser microstructures observed in the as-welded condition. Scanning electron microscopy and X-ray diffraction were used to investigate the microstructural morphology and phase identification of the weld zone. The findings of these tests revealed a link between microstructure and corrosion behaviours.


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R. Ambat, A.J. Davenport, G.M. Scamans, & A. Afseth, Effect of iron-containing intermetallic particles on the corrosion behavior of aluminium, Corrosion Science, 48(11), (2006) 3455–3471.

C.M. Liao, R.P. Wei, Galvanic coupling of model alloys to aluminum—a foundation for understanding particle-induced pitting in aluminum alloys, Electrochimica Acta, 45(6), (1999) 881-888.

Z. Szklarska-Smialowska, Pitting corrosion of aluminum, Corrosion Science, 41(9), (1999) 1743-1767.

V. Guillaumin, G. Mankowski, Localized corrosion of 6056 T6 aluminium alloy in chloride media, Corrosion Science, 42(1), (2000) 105–125.

V. Fahimpour, S.K. Sadrnezhaad, F. Karimzadeh, Corrosion behavior of aluminum 6061 alloy joined by friction stir welding and gas tungsten arc welding methods, Materials and Design, 39, (2012) 329-333.

D.A. Wadeson, X. Zhou, G.E. Thompson, P. Skeldon, L. Djapic Oosterkamp, G. Scamans, Corrosion behaviour of friction stir welded AA7108 T79 aluminium alloy, Corrosion Science, 48(4), (2006) 887–897.

G. Mathers, (2002) The welding of aluminium and its alloys, Elsevier Science.

S. Maggiolino, Ch. Schmid., Corrosion resistance in FSW and in MIG welding techniques of AA6XXX, Journal of Materials Processing Technology, 197(1-3), (2008) 237–240.

Y. Yorozu, M. Hirano, K. Oka, Y. Tagawa, Electron spectroscopy studies on magneto-optical media and plastic substrate interface, IEEE Translation Journal on Magnetics in Japan, 2(8), (1987) 740–741.

How to Cite
Garg, S.; Palanisamy, A. Impact of Age Hardening on the Corrosion Characteristics of Dissimilar Aluminum Alloys Welded Using an Innovative MIG Welding Approach. ijceae 2023, 5, 52-61.

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