Investigations on Dissimilar Weldments of Inconel 625 and AISI 304

This paper investigates the weldability, metallurgical and mechanical properties of the dissimilar joints of Inconel 625 and AISI 304. Dissimilar joints were obtained by gas tungsten arc welding process employing ERNiCrMo-3. Tensile fracture occurred at the parent metal of AISI 304 in all the trials. The structure-property relationships on these dissimilar weldments were evaluated using the combined techniques of optical microscopy and SEM /EDAX techniques.