Cu-Cr合金电滑动摩擦磨损性能研究
Study on Electrical Sliding Wear Behavior of Cu-Cr Alloy
王永鹏1,2, 宋克兴1,2, 王 青1, 张 莉1
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作者单位：(1. 河南科技大学 材料科学与工程学院, 河南 洛阳 471003; 2. 河南省有色金属材料科学与加工技术重点实验室, 河南 洛阳 471003)
中文关键字：Cu-Cr合金； 电滑动磨损性能； 磨损机制
英文关键字：Cu-Cr alloy; electrical sliding wear; wear mechanism
中文摘要：对制备的Cu-Cr析出强化型铜合金在电磨损试验机上进行磨损试验，并用扫描电子显微镜观察材料的磨损表面形貌，用能谱仪对其磨损表面主要元素进行分析，然后探讨其磨损机制。结果表明， Cu-Cr合金的磨损率随滑行距离的增加而增加；磨损率随Cr含量的增加而减小，其中Cu-0.65Cr、Cu-0.76Cr合金的磨损率是Cu-0.86Cr合金磨损率的2～3倍；Cu-Cr合金的磨损机制以粘着磨损为主。
英文摘要：The electrical wear behavior of Cu-Cr precipitation strengthened copper alloy was investigated using electrical sliding-wear tester. The worn surface of the alloy was analyzed by scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS), and its abrasion mechanism was discussed. The results indicate that the wear rate of Cu-Cr alloy increases with the increase of sliding distance. The wear rate of the alloy decreases with the increase of Cr-content. The wear rate of Cu-0.65Cr and Cu-0.76Cr alloy is 2～3 times that of Cu-0.86Cr alloy. The adhesive wear is the dominant wear mechanism during electrical sliding wear.