Effect of heat treatment of 316L stainless steel produced by selective laser melting (SLM)

摘要

Selective Laser Melting (SLM) shows a big potential within additive manufacturing ofmetals. The competitive mechanical properties compared to conventional processes as well as thegeometry freedom are the main advantages of SLM. 316L stainless steel has been investigated inprevious works regarding microstructure and mechanical properties. However, the influence ofheat treatments has not been fully reported yet. This work studies the influence of different heattreatments applied to 316L stainless steel produced by SLM. The microstructure evolution wasinvestigated for different conditions. Tensile, Charpy and hardness tests were performed on the asbuilt and heat treated samples.