表面纳米化对高锰钢磨料磨损性能的影响

严伟林 1; 方亮 1; 孙琨 1; 许云华 2

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表面纳米化对高锰钢磨料磨损性能的影响

专题研究 | 更新时间：2025-12-08

- 表面纳米化对高锰钢磨料磨损性能的影响
- Effect of Surface Nanocrystallization on Abrasive Wear Properties in Hadfield Steel
- 西安交通大学学报 2007年41卷第5期页码：611-615
- 作者机构：
  
  西安交通大学金属材料强度国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
  
  : 2006-10-25. 作者简介: 严伟林(1962～),男,博士生;方亮(联系人),男,教授,博士生导师. 基金项目: 国家高技术研究发展计划资助项目(2002AA302509)
- DOI：
  中图分类号： TG142.72
- 网络首发：2007-05-10，
  
  纸质出版：2007
- 稿件说明：
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严伟林 1, 方亮 1, 孙琨 1, 等. 表面纳米化对高锰钢磨料磨损性能的影响[J]. 西安交通大学学报, 2007,41(5):611-615.

严伟林 1, 方亮 1, 孙琨 1, et al. Effect of Surface Nanocrystallization on Abrasive Wear Properties in Hadfield Steel[J]. 2007, 41(5): 611-615.
严伟林 1, 方亮 1, 孙琨 1, 等. 表面纳米化对高锰钢磨料磨损性能的影响[J]. 西安交通大学学报, 2007,41(5):611-615. DOI：

严伟林 1, 方亮 1, 孙琨 1, et al. Effect of Surface Nanocrystallization on Abrasive Wear Properties in Hadfield Steel[J]. 2007, 41(5): 611-615. DOI：

摘要

利用传统的喷丸技术

在高锰钢表面制备出了具有纳米晶结构特征的表层

并利用X射线衍射仪及高分辨透射电子显微镜表征了表面纳米晶的微观组织结构特征.喷丸处理试样的表层晶粒细化至纳米量级

喷丸60 min试样的表面晶粒尺寸约为3～8 nm.随着喷丸处理时间的增加

试样表面硬度增加

晶粒尺寸减小.利用三体磨料磨损试验机检验了喷丸处理前、后试样的磨料磨损性能

结果表明:喷丸时间为2～30 min时

试样的耐磨性随着喷丸时间的增加而增加; 喷丸30 min试样的耐磨性提高了72%; 过长的喷丸时间导致试样产生微裂纹而使耐磨性下降.晶粒细化和硬度提高使磨损机理发生改变

未喷丸处理试样的磨损主要为微观切削

而喷丸处理试样的磨损主要为疲劳剥落

磨损机理的改变使材料的耐磨性提高.

Abstract

A nano scale grains surface layer on Hadfield steel was produced by shot peening treatment. The microstructure within the surface layer of the shot peening treated sample was examined by X-ray diffraction(XRD)and high-resolution transmission electron microscope(HREM). The grain size of 3-8 nm was obtained on the sample surface after 60 min shot peening. With increasing shooting duration

the grains were refined and hardness increased in the treated sample surface. For the three-body abrasive wear

wear resistance could be improved after shot peening when glass particles served as abrasives

especially

the wear resistance of treated surface can be increased by 72% for 30 min shot peening duration. Nanocrystallization and surface hardening change the wear mechanism

and a lot of micro-cracks due to excessive shot peening lead to a weakened wear resistance.

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references

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