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<p>The present study investigated the wear resistance of 316L stainless steel processed using surface mechanical attrition treatment (SMAT). First, polishing of 316 stainless steel was performed, followed by SMAT machining on its surface; then, a second polishing was performed to reduce the roughness. A comparative study was conducted regarding the micromorphology, microhardness, and wear resistance of samples polished separately, polished+SMAT, and polished+SMAT+polished. The results demonstrated that the sample polished twice had a maximum microhardness of 485.1 HV, which was 140.3 % higher than the UP sample. Experiments on friction and wear revealed that the sample polished twice had a 50 % lower friction coefficient than the sample UP, and the wear rate was lowered by 65.22 % to just 1.12×10<sup>−4</sup> mmN<sup>−1</sup>m<sup>−1</sup>. In summary, polishing the material surface after SMAT can further enhance the wear resistance of metallic materials.</p>

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Enhancing the wear resistance of 316L stainless steel through surface mechanical attrition treatment and polishing treatment

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • Shaowen Song,
  • Ben Deng,
  • Hongchun Yao,
  • Zhihui Liu,
  • Xue Wen,
  • Xincheng Xie

摘要

The present study investigated the wear resistance of 316L stainless steel processed using surface mechanical attrition treatment (SMAT). First, polishing of 316 stainless steel was performed, followed by SMAT machining on its surface; then, a second polishing was performed to reduce the roughness. A comparative study was conducted regarding the micromorphology, microhardness, and wear resistance of samples polished separately, polished+SMAT, and polished+SMAT+polished. The results demonstrated that the sample polished twice had a maximum microhardness of 485.1 HV, which was 140.3 % higher than the UP sample. Experiments on friction and wear revealed that the sample polished twice had a 50 % lower friction coefficient than the sample UP, and the wear rate was lowered by 65.22 % to just 1.12×10−4 mmN−1m−1. In summary, polishing the material surface after SMAT can further enhance the wear resistance of metallic materials.