Microstructure and mechanical properties of SS316L prepared by selective laser melting

IF 1.3 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Emerging Materials Research Pub Date : 2023-03-01 DOI:10.1680/jemmr.22.00139

Di Chen, Q. Pan, Ziqi Liu, Qile Shi, Lin Zhang, Jingguang Peng, Ying Li

引用次数: 1

Abstract

In this work, 316L stainless steel samples were prepared by selective laser melting (SLM) and the effects of the bulk laser energy density on the resulting density and mechanical properties were evaluated. The results show that the density and mechanical properties of SLM 316L stainless steel first improved then deteriorated with increasing bulk laser energy density. When the bulk laser energy density was 70.2 J·mm−3, the obtained tensile strength and yield strength vertical to the building direction were 720 and 546 MPa, respectively, which surpass the design requirements for forged 316L stainless steel. The influence of the microstructure on the mechanical properties of SLM 316L stainless steel is also discussed. The purpose of this research was to provide experimental data and a theoretical basis for high-performance 316L stainless steel fabricated by SLM.

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选择性激光熔融制备SS316L的组织与力学性能

在本工作中，通过选择性激光熔化（SLM）制备了316L不锈钢样品，并评估了体激光能量密度对所得密度和力学性能的影响。结果表明，随着体激光能量密度的增加，SLM36L不锈钢的密度和力学性能先提高后下降。当体激光能量密度为70.2 J·mm−3时，获得的垂直于建筑方向的抗拉强度和屈服强度分别为720和546 MPa，超过了锻造316L不锈钢的设计要求。还讨论了显微组织对SLM36L不锈钢力学性能的影响。本研究的目的是为SLM制备高性能316L不锈钢提供实验数据和理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Emerging Materials Research MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.50

自引率

9.10%

发文量

期刊介绍： Materials Research is constantly evolving and correlations between process, structure, properties and performance which are application specific require expert understanding at the macro-, micro- and nano-scale. The ability to intelligently manipulate material properties and tailor them for desired applications is of constant interest and challenge within universities, national labs and industry.