Fabrication and Tribological Properties of Copper Matrix Solid Self-Lubricant Composites Reinforced with Ni/NbSe2 Composites

Fei-Xia Zhang; Yan-Qiu Chu; Chang-Sheng Li

doi:10.3390/ma12111854

Fabrication and Tribological Properties of Copper Matrix Solid Self-Lubricant Composites Reinforced with Ni/NbSe₂ Composites

Materials (Basel). 2019 Jun 7;12(11):1854. doi: 10.3390/ma12111854.

Authors

Fei-Xia Zhang^{1

2}, Yan-Qiu Chu³, Chang-Sheng Li⁴

Affiliations

¹ Key Laboratory of Tribology of Jiangsu Province, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China. zhangfx@zjc.edu.cn.
² School of Modern Equipment Manufacturing, Zhenjiang College, Xuefu Road, Zhenjiang 212003, China. zhangfx@zjc.edu.cn.
³ School of Mathematical, Jiangsu University of science and technology, Zhenjiang 212013, China. chuyanqiu@just.edu.cn.
⁴ Key Laboratory of Tribology of Jiangsu Province, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China. lichangsheng@ujs.edu.cn.

Abstract

This paper presents a facile and effective method for preparing Ni/NbSe₂ composites in order to improve the wettability of NbSe₂ and copper matrix, which is helpful in enhancing the friction-reducing and anti-wear properties of copper-based composites. The powder metallurgy (P/M) technique was used to fabricate copper-based composites with different weight fractions of Ni/NbSe₂, and tribological properties of composites were evaluated by using a ball-on-disk friction-and-wear tester. Results indicated that tribological properties of copper-based composites were improved by the addition of Ni/NbSe₂. In particular, copper-based composites containing 15 wt.% Ni/NbSe₂ showed the lowest friction coefficient (0.16) and wear rate (4.1 × 10^-5 mm³·N^-1·m^-1) among all composites.

Keywords: copper-based composites; friction coefficient; tribological properties.