新型铜钛硅碳石墨合金材料的摩擦磨损性能  

Friction and Wear Property of a New Cu-based Cu/Ti_3SiC_2/C composite

作　　者：卢棋 何国球[1] 杨洋[1] 樊康乐[1] 赵小根[1] 

机构地区：[1]同济大学材料科学与工程学院上海市金属功能材料开发应用重点实验室,上海201804

出　　处：《材料研究学报》2015年第3期216-220,共5页Chinese Journal of Materials Research

基　　金：国家重点基础研究发展规划2007CB714705;国家自然科学基金50771073资助项目~~

摘　　要：采用冷压烧结粉末冶金法制备铜钛硅碳石墨合金材料,通过摩擦磨损试验机和扫描电子显微镜(SEM)等手段研究了铜钛硅碳石墨合金材料的磨损性能和磨损机制,以及速度和载荷对滑块摩擦磨损性能的影响。结果表明,在速度较大或载荷较小的条件下磨损量随着滑移距离呈现线性增长,在试验参数范围内磨损量整体上随着滑移距离的变化曲线有一定的规律性。微观分析表明,钛硅碳和石墨零星分布在磨损表面极大地提高了铜基材料的耐磨性能。磨损的主要形式,是黏着磨损、磨粒磨损和氧化磨损。A new Cu-based composite Cu/Ti3 Si C2/C was prepared by powder metallurgy. Then the tribological performance of the composite was examined under different sliding speeds and loads by means of a specially designed sliding apparatus. The worn surface of the composite was characterized by SEM equipped with EDS. The results show that the amount of wear loss increases linearly with the increase of the sliding distance under the condition of high speed and low load. The observation of the worn surface showed that scattered distribution of Ti3 Si C2and graphite in the Cu matrix may be responsible to the obvious enhancement of the wear property the composite. Furthermore, the worn failure of the composite may be attributed to adhesive wear, abrasive wear and oxidation wear.

关 键 词：金属材料 钛硅碳 摩擦磨损 速度 载荷 磨损机制 

分 类 号：TF125.9[冶金工程—粉末冶金]