Tribological behavior of CNTs-Cu and graphite-Cu composites with electric current

作     者：XU Wei HU Rui LI Jin-shan ZHANG Yong-zhen FU Heng-zhi 许玮;胡锐;李金山;张永振;傅恒志

作者机构：State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical UniversityXi’an 710072China Engineering SchoolShanxi Datong UniversityDatong 037003China Laboratory of Material TribologyHenan University of Science and TechnologyLuoyang 471003China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2012年第22卷第1期

页      面：78-84页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：Project (2007CB607603) supported by the National Basic Research Program of China 

主　　题：Cu matrix composite tribological behaviors electric current wear mechanisms 

摘      要：CNTs-Cu and graphite-Cu composites were separately prepared by powder metallurgy technique under the same consolidation processing. Tribological behavior of the composites with electric current was investigated by using a pin-on-disk friction and wear tester. The results show that the friction coefficient and wear rate of the composites decrease with increasing the reinforcement content, and increase with increasing the electric current density; the effects of electric current are more obvious on tribological properties of graphite-Cu composites than on CNTs-Cu composites; for graphite-Cu composites the dominant wear mechanisms are electric arc erosion and adhesive wear, while for CNTs-Cu composites are adhesive wear.