[15P-T1-05] Enhancing Sustainability in Metal Additive Manufacturing with Recycled Fe Co Ni Powders through Plasma Atomization
Keywords:Additive Manufacturing, Sustainability
Selective laser melting (SLM) is a metal additive manufacturing (AM) technique that utilizes high-powered laser to selectively melt and fuse metal powders, layer by layer, to create a 3D object. With SLM, there are often a substantial quantity of powders that is left unused. If the powders are not recycled, it becomes not cost-effective and directly reusing the used powders compromises the printed part quality. Therefore, this study is conducted to focus on recycling and improving the quality of Fe, Co & Ni alloyed powders with mechanical pre-alloying and plasma atomization to improve sustainability for metal additive manufacturing including L-PBF and cold spray techniques. The recycled powders showed improvements in shape factor, hall flow tests, reduction in oxidation content and satellites. Tests such as porosity, tensile, SEM, EDX and EBSD has been carried out to understand the properties of the additively manufactured alloy.