Effect of Selective Laser Melting (SLM) process parameters on microstructure and mechanical properties of 316L austenitic stainless steel

By E. Liverani, S. Toschi, L. Ceschini, A. Fortunato. 2017

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Mechanical anisotropy of additively manufactured stainless steel 316L: An experimental and numerical study (2021, background): “Stainless steel 316L specimens produced via laser powder bed fusion LPBF316L) usually have a layered morphology, which consists of many ifferent features on a broad range of length scales [6,7].”
The influence of aging temperature and aging time on the mechanical and tribological properties of selective laser melted maraging 18Ni-300 steel (2018, background): “Defects are typically caused by unmelted powders and entrapment of gases in the molten pools during solidification [7,28].”
Mechanical and microstructural testing of wire and arc additively manufactured sheet material (2020, background): “[21], in which the grains were found to be orientated preferentially along the path with the greatest thermal gradient.”
Development of Micro Selective Laser Melting: The State of the Art and Future Perspectives (2019, background): “The mechanical behavior of parts fabricated by means of conventional SLM, including the hardness, tensile, and fatigue properties of various materials, has been widely reported [11,25,50,56,57].”
Microstructure and mechanical properties of 316L austenitic stainless steel processed by different SLM devices (2020, background): “If there is an insufficient amount of residual melt between the grains that are moving towards each other, pores and binding defects may be formed [7].”