周必元,郏永强,宋浩,寇鹏祖,王涛,巴志新

• 1:南京工程学院材料科学与工程学院
• 2:江苏省先进结构材料与应用技术重点实验室

摘要(Abstract)：

在不引入外来元素的情况下,通过金属高能离子源(MEVVA)将不同剂量(1×1016,2×1016,3×1016,5×1016ions/cm2)的锆元素注入ZK60镁合金表面。采用X射线光电子能谱(XPS)刻蚀技术分析了注入层的结构成分,利用摩擦磨损试验机研究了注入前后试样表面耐磨性能变化,通过电化学工作站研究了Zr离子注入前后ZK60镁合金在3. 5%Na Cl溶液中的耐腐蚀性能,根据电化学阻抗数据拟合等效电路,探讨其耐蚀机理。结果表明,注入剂量为2×1016ions/cm2时,ZK60镁合金表面形成一层主要由Zr O2、Zr和MgO组成的改性层,其表面耐磨性能得到改善;随着注入剂量的增加,其腐蚀电流密度先减小后增加,当注入剂量为2×1016ions/cm2时,其腐蚀电流密度下降了约两个数量级,表明Zr离子注入可有效提高ZK60镁合金的耐蚀性能。

关键词(KeyWords)： 镁合金;离子注入;耐磨性能;耐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 江苏省高校自然科学研究项目(17KJA430007);; 江苏省高等学校大学生创新创业训练计划项目(201811276078H);; 南京工程学院创新创业训练计划项目(TB201902018)

作者(Author): 周必元,郏永强,宋浩,寇鹏祖,王涛,巴志新

DOI: 10.13289/j.issn.1009-6264.2019-0188

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