冯爱新,陈风国,裴绍虎,薛伟,章正刚,吕豫文,庄绪华,印成

• 1:温州大学机电工程学院
• 2:江苏大学机械工程学院
• 3:常州光电技术研究院

摘要(Abstract)：

采用激光熔覆对304不锈钢表面处理得到不同的熔覆层,研究了激光功率和粉末成分对涂层磨损量以及摩擦系数的影响。利用CETR UMT-2型摩擦磨损试验机进行干滑动磨损试验,采用SURFCOM 130A型粗糙度仪扫描熔覆层表面磨痕,采用ESM及EDS观察磨损表面形貌,分析其磨损形式。结果表明:C类涂层(Ni60:92%,C;2%,Mo S2:6%)在1.8 k W激光下制备的涂层C2的磨损量为1.452×10-2mm3,相对耐磨性达到基体的6.39倍,磨损形式主要为疲劳磨损,伴随轻微磨粒磨损;E类涂层(Ni60:92%,C:6%,Mo S2:2%)在2.0 k W激光下制备的涂层E3的磨损量仅为0.925×10-2mm3,耐磨性最好,磨损形式主要为磨粒磨损;添加润滑相的E3涂层的摩擦系数高于C2,但是在整个实验过程中比较稳定;磨损特性的改善表明石墨与Mo S2之间有良好的协同效应。

关键词(KeyWords)： 激光熔覆;摩擦磨损;激光功率;粉末成分;磨损机制

Abstract:

Keywords:

基金项目(Foundation): 科技部中俄双边政府间2014-2015科技合作项目(CR17-11);; 浙江省国际科技合作专项(2013C14007);; 国家自然科学基金项目(51175237,51305050);; 温州市工业科技研究开发项目(J20130033)

作者(Author): 冯爱新,陈风国,裴绍虎,薛伟,章正刚,吕豫文,庄绪华,印成

DOI: 10.13289/j.issn.1009-6264.2015.08.039

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