Abstract Scope |
Additive manufacturing has emerged as a highly effective approach for fabricating intricate structures with enhanced design flexibility. Expanding upon this methodology, we investigate the potential of laser-based additive manufacturing techniques, including directed energy deposition and laser powder bed fusion, for fabricating complex concentrated alloys. Specifically, we explore the feasibility of employing a powder mixture comprising the commonly used stainless steel 316L (SS316L) and Inconel 718 (IN718) to achieve exceptional print quality. This study not only addresses the demands of resource-constrained environments but also caters to the requirements of location-specific design objectives. The resulting complex concentrated alloy exhibits a refined grain structure, showcasing remarkable stability even under conditions of high-temperature homogenization. Moreover, using alloy CALPHAD-based ICME design (ICME: Integrated Computational Materials Engineering), we discovered a new composition demonstrating superior precipitation strengthening, yielding comparable strength to IN718 while reducing manufacturing costs through increased iron content. |