Journal ArticleDOI
Influence of Filler Wire Material on Dissimilar Welding of 15-5PH to KC20WN (Haynes 25)
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In this article, dissimilar welding of stainless steel 15-5PH to a Cobalt-base super alloy KC20WN (UNS R30605/Haynes 25) is attempted for specific purpose in space applications.Abstract:
Many of the components/assemblies used in strategic sectors involve dissimilar metal weld joints and dissimilar welding has always imposed challenges in terms of the weld quality because of the physical and chemical mismatches of the base metals. In the present study, dissimilar welding of stainless steel 15-5PH (UNS S15500) to a Cobalt-base super alloy KC20WN (UNS R30605/ Haynes 25) is attempted for specific purpose in space applications. Gas Tungsten Arc Welding is carried out with two types of filler wires, viz., KC20WN and ER 630 (17-4PH). Visual inspection, Dye Penetrant testing and X-ray radiography testing revealed defect free joints and the joints were also characterized for microstructure. Superior properties were observed when welding was carried out with KC20WN filler wire compared to that with ER630 filler wire.read more
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Welding Metallurgy and Weldability of Stainless Steels
TL;DR: In this article, the authors introduce phase diagrams and constitution diagrams for welding of stainless steel welds, as well as a Weldability Testing Appendix 1: Nominal Compositions of Stainless Steels Appendix 2: Etching Techniques for Stainless Steel Welds Author Index Subject Index
Book
Handbook Of Stainless Steels
TL;DR: Handbook of stainless steels, Handbook of Stainless Steels as mentioned in this paper, Handbook of Stochastic Graphite and Graphite Graphite (HGPG), 2015, p.
Journal ArticleDOI
Dissimilar welding of AISI 310 austenitic stainless steel to nickel-based alloy Inconel 657
TL;DR: In this paper, the authors compared welding of AISI 310 austenitic stainless steel to Inconel 657 nickel-chromium superalloy and showed that Inconels A showed the least susceptibility to hot cracking.
Journal ArticleDOI
Characterization of microstructures and mechanical properties of Inconel 617/310 stainless steel dissimilar welds
TL;DR: The microstructure and mechanical properties of Inconel 617/310 austenitic stainless steel dissimilar welds were investigated in this article, where three types of filler materials, including nickel-base fillers, were used to obtain dissimilar joint using the gas tungsten arc welding process.
Journal ArticleDOI
Microstructural features of dissimilar welds between 316LN austenitic stainless steel and alloy 800
TL;DR: In this article, the weld fusion zones and the interfaces with the base materials were characterised in detail using light and transmission electron microscopy, showing that the stainless steel weld metals solidified dendritically, while the 16-8-2 (16%Cr-8%Ni-2%Mo) weld metal showed a predominantly cellular substructure.