Effect of filler wires on weld strength of dissimilar pulse GTA Monel 400 and AISI 304 weldments

Abstract

Abstract Dissimilar welds of Monel 400 and AISI 304 are extensively used in feedwater heat exchanges, petrochemical industries, nuclear industries where moderate weld strength and high corrosion resistance are required. In this paper, dissimilar weldments of AISI 304 and Monel 400 have been developed by employing pulsed tungsten inert gas welding. Three filler wires, namely, ERNiCrMo-3, ERNiCrMo-4 and ER304 were used to study the effect of fillers on these weldments. The tensile properties of weldments have been evaluated for three filler weldments and compared. The tensile properties of ERNiCrMo-3 filler are superior to that of welds made of other two filler welds.