滕越,郭媛媛,张峻巍,周艳文,陈军,张泽,刘梦楠,张朔,李城祥

• 1:辽宁科技大学材料与冶金学院

摘要(Abstract)：

研究了激光淬火对奥氏体不锈钢表面渗氮层相组成和性能的影响。采用X射线衍射仪分析淬火后渗氮层的相组成;采用扫描电镜与能谱仪观察渗氮层截面形貌并测量深度方向上的元素分布;利用球磨仪和电化学方法分别研究淬火对渗氮层耐磨性和耐腐蚀性的影响。结果表明:激光淬火导致低温等离子体渗氮处理生成的γ_N相分解为α-Fe与CrN相;当渗氮层氮浓度较低时,CrN在整个渗氮层中析出,耐磨性明显提高;而当氮浓度较高时,CrN仅在晶界位置析出,耐磨性保持不变。渗氮奥氏体不锈钢经激光淬火后,自腐蚀电位降低,腐蚀电流密度增大,耐腐蚀性降低。

关键词(KeyWords)： 等离子体渗氮;激光淬火;相组成;耐磨性能;耐腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年基金(51502126,51972155);; 辽宁省自然科学基金(20180550802,2015020226);; 辽宁科技大学大学省级重点实验室中心开放课题(USTLKFSY201705);辽宁科技大学青年基金(2018QN12);辽宁科技大学大学生创新创业项目(101462019144,101462019139)

作者(Author): 滕越,郭媛媛,张峻巍,周艳文,陈军,张泽,刘梦楠,张朔,李城祥

DOI: 10.13289/j.issn.1009-6264.2019-0367

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