Microstructure and Chemical Composition Analysis of Double Wire Arc Additive Manufactured Bimetallic Structure

In this paper, Inconel 625 and austenite stainless steel 304L bimetal structure were deposited through double wire arc additive manufacturing (DWAAM). Two build strategies were adopted, i.e., bimetallic structures (BMS) of Inconel and stainless steel without and with intermediate layers. Compositions of intermediate layers were gradually varied from pure Inconel 625 with continuously decreasing it to pure 304L stainless steel (SS) by varying the...