Kuo Yang, Yanqiu Xia, Yi Zhang, Wenhao Chen, Xin Feng
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引用次数: 0
Abstract
In this paper, a Cu–C coating was prepared on a copper substrate through a magnetron sputtering coating process, and the effect of a composite grease containing WS2 and MoS2 on its tribological behavior and electrical conductivity was studied. Experimental results revealed that the Cu–C coating exhibited certain friction-reducing effects under dry sliding conditions with a 5 N load. In the lubricated state with polyurea-based grease, the Cu–C coating demonstrated lower friction coefficients and contact resistances at 2 N and 5 N loads, accompanied by reduced wear rates, indicating a synergistic effect between the lubricant and the coating, enhancing the friction-reducing performance. Furthermore, the incorporation of additives such as WS2 and MoS2 can effectively decrease both friction and contact resistance. Notably, 1% WS2 grease, in combination with Cu–C coating, exhibits superior compatibility, resulting in optimized tribological properties and electrical conductivity. Therefore, the results of this study suggest that the combination of Cu–C coatings with WS2 grease can effectively improve the electrical conductivity and friction-reducing and anti-wear capabilities of Cu–Cu sliding pairs, providing an effective solution for enhancing the electrical conductivity of electric vehicle connectors and improving the overall efficiency of the battery system.
期刊介绍:
Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.