赵云,曾云,刘伟光,陈飞,周海

• 1:北京石油化工学院材料科学与工程学院
• 2:北京化工大学材料科学与工程学院

摘要(Abstract)：

采用等电位空心阴极辉光放电技术对纯钛进行W-Mo二元共渗,通过扫描电子显微镜(SEM)、能谱仪(EDS)、X射线衍射仪(XRD)、显微硬度计对试样的结构形貌、渗层成分分布及相组成、硬度进行研究。利用摩擦磨损试验仪对试样的摩擦学性能进行研究,利用电化学腐蚀工作站,研究了W-Mo合金渗层在常温静态条件下,在3.5%Na Cl腐蚀介质中的耐蚀性能。结果表明,经W-Mo共渗处理后纯钛表面形成了一层均匀致密的W-Mo改性层,渗层最大厚度达到16.6μm,最大硬度达到1196HV0.1,是基体的6.85倍。W-Mo共渗后改性层主要由W、Mo、Mo Ti、TixW1-x相组成。由于表面硬度的大幅提升,试样表面的耐磨性也显著提高,最低摩擦系数仅为0.23,较原始试样的0.516明显减小。测得的试样最低腐蚀速率为0.0016 mm/a,是原始试样的1/230,耐蚀性能也显著提高。

关键词(KeyWords)： 纯钛;辉光放电;W-Mo共渗;耐磨性能;耐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 北京石油化工学院优秀学科带头人培育计划(BIPTBPOAL-2013)

作者(Author): 赵云,曾云,刘伟光,陈飞,周海

DOI: 10.13289/j.issn.1009-6264.2015.s1.042

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