董敏鹏,吴国东,李金龙,马付良,王志军

• 1:中北大学机电工程学院
• 2:中国科学院宁波材料技术与工程研究所中国科学院海洋新材料与应用技术重点实验室浙江省海洋材料与防护技术重点实验室

摘要(Abstract)：

采用高温气体渗氮对Ti6Al4V合金进行表面渗氮处理。研究了钛合金表面渗氮层的组织结构、摩擦学性能和人工海水中的电化学性能。结果表明,渗氮层存在氮化物层和扩散层,在Ti6Al4V合金表面发现了δ-TiN相和ε-Ti_2N相。渗氮层近表面区域硬度最高可达25 GPa、弹性模量达320 GPa。渗氮层的摩擦系数和磨损率显著降低;渗氮样品在人工海水中的腐蚀速率降低、抗腐蚀性能明显提高。

关键词(KeyWords)： 钛合金渗氮;表面渗氮层;组织结构;摩擦学性能;电化学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划资助(2016YFB0300604);; 国家自然科学基金项目(51575510,51605433)

作者(Author): 董敏鹏,吴国东,李金龙,马付良,王志军

DOI: 10.13289/j.issn.1009-6264.2018-0156

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