International Journal of Vehicle Structures and Systems

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Dissimilar welding between low carbon steel and austenitic stainless steel using both Tungsten inert gas and metal inert gas welding has been reported. However, the combination of SS304 and mild steel has less tensile strength in both TIG and MIG welding. Therefore, this study is undertaken with the objective of finding the weld strength of EN19 and SS304L using TIG and MIG welding with different parameters. Tensile strength and hardness of the welded region is found to be higher than that of the base material. The comparison of microstructure near the weld pool and the base material revealed the changes in composition of materials besides the formation of marten site in the welded region. The main application of this material thus prepared by welding processes could be in automobile industries, food industries and nuclear pressure vessels.

Keywords

Austenitic Chromium-Nickel Stainless Steel, Inert Gas Welding, TIG Welding, Mechanical Properties, Microstructure.
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