Abstract
In this work, AISI 430 ferritic stainless steel (FSS) was produced in multi-layered wall form using gas tungsten arc welding (GTAW) based wire arc additive manufacturing (WAAM), and the mechanical and metallurgical performance was evaluated. Ferrite microstructure was found on the as-printed steel with deleterious phases and needle-shaped martensite structure. The microhardness variation of the WAAM deposited steel is found to be 200–240 HV at different regions of the entire cross-sectional area. The tensile test was done on the steel to determine the ultimate tensile and yield strength, reported as 565 ± 3 and 306 ± 1 MPa. The tensile fractured surface shows the existence of more and deeper dimples which illustrates the ductile failure.
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