Investigation of the microstructure and mechanical properties of ۳۱۶L Stainless Steel produced by the Wire Arc Additive Manufacturing process

In this study, austenitic stainless steel ۳۱۶L was fabricated by the Wire Arc Additive Manufacturing (WAAM) process, and its microstructure and mechanical properties were investigated. The results revealed a dual-phase microstructure consisting of austenite (y) and a small fraction of ۶-ferrite, formed due to rapid cooling and multiple thermal cycles. Columnar dendritic and epitaxial growth along the build direction were observed. Tensile tests showed anisotropic behavior, with higher strength and elongation in the direction perpendicular to the build direction. The mechanical properties met industrial standards, confirming WAAM's capability to produce high-quality ۳۱۶L components.

کلیدواژه ها:

Wire Arc Additive Manufacturing ، ۳۱۶L Stainless Steel ، Mechanical properties ، Microstructure