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Fabrication and Tribological Properties of Copper Matrix Solid Self-Lubricant Composites Reinforced with Ni/NbSe2
Fei-Xia Zhang1,2, Yan-Qiu Chu3, Chang-Sheng Li4
1Key Laboratory of Tribology of Jiangsu Province, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China. zhangfx@zjc.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.
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