An Experimental study on TIG welded joint between Duplex Stainless Steel and 316L Austenitic Stainless Steel

International Journal of Mechanical Engineering

© 2015 by SSRG - IJME Journal

Volume 2 Issue 10

Year of Publication : 2015

Authors : A. Devaraju

10.14445/23488360/IJME-V2I10P101

How to Cite?

A. Devaraju, "An Experimental study on TIG welded joint between Duplex Stainless Steel and 316L Austenitic Stainless Steel," SSRG International Journal of Mechanical Engineering, vol. 2,  no. 10, pp. 1-4, 2015. Crossref, https://doi.org/10.14445/23488360/IJME-V2I10P101

Abstract:

An attempt was made to join the two dissimilar material between Duplex Stainless Steel (DSS) and 316L Austenitic Stainless Steel (316L SS) by Tungsten Inert Gas (TIG) welding process. 316L SS was used as filler metal. The microstructures of DSS and 316L SS were evaluated before and after the TIG welding. The various mechanical tests were conducted to evaluate the mechanical properties. Although the welded joint revealed the acceptable mechanical properties, the hardness and impact strength of the welded zone of DSS were higher than the welded zone of 316L SS. In this paper, the focus is on characterization and analysis of the welded joint. The microstructure and chemical composition of the selected metals were also found to play an important role on mechanical properties. The results are summarized to rationalize the relationship between chemical composition, welding conditions, and heat affected zone microstructures, and then mechanical tests such as X- ray test, impact test, hardness test, tensile test and bending test.

Keywords:

Dissimilar metal weld, TIG welding, Duplex Stainless Steel, 316L Austenitic Stainless Steel.

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