不同对磨材料对AlCrN涂层摩擦磨损性能影响

2018-08-16

作者：鲁洋1，邓建新1，宋文龙2，张贵梁1，张翔1 单位：1山东大学；2济宁学院

摘要：在YT15硬质合金表面采用PVD技术制备AlCrN涂层，并在UMT-2摩擦磨损试验机上分别与不同材料的对磨球（WCCo、GCr15、Q235、304）进行摩擦磨损对比试验。在不同载荷和滑动速度条件下研究了不同对磨材料对涂层表面摩擦磨损性能的影响。结果表明：涂层与304球对磨的摩擦系数最小，与WCCo球的次之，与Q235球的最大；涂层与WCCo球对磨的磨损率最低，且磨损率随载荷和速度的增加而降低；涂层与Q235、304不锈钢球对磨时主要磨损形式为粘结磨损和氧化磨损，与GCr15球对磨以粘结、磨粒和氧化磨损为主，与WC-Co球对磨以磨粒磨损和氧化磨损为主。

关键词：硬质合金；AlCrN涂层；对磨材料；摩擦磨损

中图分类号：TG135.5；TG115.5+8文献标志码：A

Effects of Different Friction Materials on Friction and Wear Behavior of AlCrN Coating

Lu Yang，Deng Jianxin，Song Wenlong，Zhang Guiliang，Zhang Xiang

Abstract:AlCrN coating is deposited on the surface of carbide (TY15) by PVD technology.Friction and wear tests are performed to evaluate the effects of different friction balls，WCCo，GCr15，Q235 and 304 balls that composed by different materials，against the AlCrN coating under different speeds and loads.The results show that the friction coefficient between the coating and the 304 ball is the lowest，followed by the WCCo ball and the Q235 ball is the highest.The wear rate of the coating against the WCCo ball is the lowest，and the wear rate decreases with the increase of the loads and speeds.The main wear types of coating against Q235 and 304 stainless steel balls are adhesive and oxidative wear，and against GCr15 ball are adhesive，abrasive and oxidative wear，and against WCCo balls are abrasive and oxidative wear.

Keywords:carbide tool；AlCrN coating；friction materials；friction and wear