Rapid construction of multicomponent TRIP stainless steel by powder feeding laser deposition for comprehensive properties

This study developed a powder feeding laser metal deposition (LMD) method that can be used to achieve a layer-by-layer fabrication of component grade material for efficiently screening the properties of different chemical compositions and determining the optimized composition range for TRIP stainless steel. The 13Cr-xNi-(10-x)Mn-3Al steel with continuous graded composition was produced by the LMD method. An optimized composition range for TRIP stainless steel was determined by testing the properties including hardness, austenite content and surface potential of positions with different compositions. The suggested Ni content is between 3%–6% and Mn content is between 4%–7%. This study demonstrates the potential of LMD method to accelerate the development of steel economically. [Display omitted] •The 13Cr-xNi-(10-x)Mn-3Al steel with continuous graded composition was produced by laser metal deposition method.•An optimized composition range for the steel was determined efficiently by screening microscopic properties on one specimen. This study provide a guide for exploring the relationship between chemical composition, microstructure, and mechanical properties.