Abstract
This study focuses on regulating the 316 L stainless steel manufactured by selective laser melting (SLM) microstructure and analyzing the influence between it and the corrosion resistance behaviors. The results show after the same subcritical-temperature heat treatment (950 °C). For the high-parameter (HP) samples, the high-density dislocation of the cellular substructures and the molten pool boundaries are eliminated. The nano inclusions are further evenly distributed, which enhances the corrosion resistance. However, the melt pool boundary of low-parameter (LP) samples is no longer eliminated, and nano-inclusions are agglomerated, resulting in reduced corrosion resistance.
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