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首页> 外文会议>Asian Pacific Conference on Fracture and Strength;APCFS; 20061122-25;20061122-25; Sanya(CN);Sanya(CN) >Mechanical Properties of 316L Stainless Steel with Nanostructure Surface Layer Induced by Surface Mechanical Attrition Treatment
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Mechanical Properties of 316L Stainless Steel with Nanostructure Surface Layer Induced by Surface Mechanical Attrition Treatment

机译：表面机械磨损处理诱导的具有纳米结构表层的316L不锈钢的力学性能

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摘要

The mechanical properties of the 316L stainless steel subjected to surface mechanical attrition treatment (SMAT) have been studied, these properties are hardness, tensile properties and wear resistance. The research shows that the thickness of the hardened layer increases with the increasing of the treating time. The refined microstructure in the treated layer led to increasing in hardness, strength, and wear resistance. It is obvious that the surface layer hardness and bulk yield strength are increasing when the SMAT time reaches 5 minutes. The increase of surface layer wear resistance is obvious when the SMAT time is 15 minutes. The SEM observation of the wear scars shows that the nanocrystalline layer might reduce the effect of adhesive wear of 316L stainless steel. Therefore, the wear mechanism changes from adhesive abrasion to grinding particle abrasion after SMAT.
机译：研究了经过表面机械磨损处理（SMAT）的316L不锈钢的机械性能，这些性能是硬度，拉伸性能和耐磨性。研究表明，硬化层的厚度随着处理时间的增加而增加。处理过的层中细化的微观结构导致硬度，强度和耐磨性的提高。显然，当SMAT时间达到5分钟时，表面层硬度和整体屈服强度会增加。当SMAT时间为15分钟时，表面层耐磨性的增加是明显的。 SEM对磨损痕迹的观察表明，纳米晶层可以降低316L不锈钢的粘着磨损的影响。因此，SMAT之后，磨损机理从粘合剂磨损变为磨粒磨损。

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