Laser welding of galvanized high strength low alloy (HSLA) steels leads to the evaporation of zinc at the weld and the formation of a heat-affected-zone (HAZ). High heat input due to welding generates macro galvanic coupling between the weld and the parent metal as well as micro galvanic corrosion at different microstructures of the weld, HAZ and the parent metal. Different microstructural substructures exhibit different electrochemical characteristics, potentially leading to microgalvanic corrosion when exposed to an aggressive electrolyte. One of the main aims of this project is to study the effect of laser welding parameter settings on the corrosion behaviour of galvanized steels. It is also important to understand the corrosion behaviour after the zinc coating is consumed or damaged. Therefore, the corrosion mechanisms in and without the presence of the zinc coating have been extensively investigated.


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    Corrosion of HSLA and Mild Steels Beneath Vehicles

    Neville,R.J. / Melbourne / S.H. et al. | Kraftfahrwesen | 1974


    Corrosion of HSLA and Mild Steels Beneath Vehicles

    Neville, R. J. / Melbourne, S. H. | SAE Technical Papers | 1974


    Microstructural and mechanical characterization of flash-welded joints is HSLA steels

    Versuto, Bruno Cassio Bertoco / Baptista, Carlos Antonio Reis Pereira / Ribeiro, Henrique Varella | SAE Technical Papers | 2010


    Microstructural and mechanical characterization of flash-welded joints is HSLA steels

    Versuto, B.C.B. / Ribeiro, H.V. / Baptista, C.A.R.P. et al. | British Library Conference Proceedings | 2008