Surface modification of ZK60 Mg alloy by high current pulsed electron beam

ZHANG Wenfeng CAO Hui HAO Yi GAO Bo TU Ganfeng

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Surface modification of ZK60 Mg alloy by high current pulsed electron beam

更新时间：2021-03-05

- Surface modification of ZK60 Mg alloy by high current pulsed electron beam
- NUCLEAR TECHNIQUES Vol. 34, Issue 1, (2011)
- 作者机构：
  
  东北大学,材料与冶金学院
- 作者简介：
- 基金信息：
  
  优秀博士学位论文培育基金(N090602009);教育部博士点新教师基金(200801451082);重点实验室开放课题(DP1050902)资助
- DOI：
  CLC： TG174
- Published：01 January 2011
- 稿件说明：
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[1]张文凤,曹辉,郝仪,高波,涂赣峰.HCPEB处理ZK60镁合金的表面微观组织和耐磨性[J].核技术,2011,34(01):9-13.

ZHANG Wenfeng CAO Hui HAO Yi GAO Bo TU Ganfeng. Surface modification of ZK60 Mg alloy by high current pulsed electron beam[J]. Nuclear techniques, 2011, 34(1): 9-13.
[1]张文凤,曹辉,郝仪,高波,涂赣峰.HCPEB处理ZK60镁合金的表面微观组织和耐磨性[J].核技术,2011,34(01):9-13. DOI：

ZHANG Wenfeng CAO Hui HAO Yi GAO Bo TU Ganfeng. Surface modification of ZK60 Mg alloy by high current pulsed electron beam[J]. Nuclear techniques, 2011, 34(1): 9-13. DOI：

摘要

采用强流脉冲电子束对ZK60镁合金进行表面改性

研究电子束处理后镁合金微观组织结构和耐磨性的变化。微观组织结果表明

电子束处理使ZK60镁合金表面熔化

晶界变得不明显

元素偏析得到改善

合金表面化学成分均匀化分布

且在镁合金表面生成一层厚为5–11μm的高致密度的重熔层

晶粒得到细化。耐磨性测试结果表明

电子束处理后镁合金的耐磨性明显提高

且15次脉冲处理的样品的耐磨性最好

其耐磨性是原样品的2.5倍。

Abstract

ZK60 Mg alloy was treated by high current pulsed electron beam (HCPEB) so as to improve the wear resistance. Surface SEM images show that the HCPEB bombardment caused surface melting

grain boundary elimination and uniform distribution of the metal compositions. SEM image of the cross-section microstructure indicates that a remelted layer of 5–11 μm was formed on surface of the HCPEB-treated ZK60 Mg alloy. Wear test shows that wear resistance of the treated ZK60 Mg alloy after 23 keV 15-pulse treatment was improved by a factor of 2.5.

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