Fabrication and Tribological Properties of Copper Matrix Solid Self-Lubricant Composites Reinforced with Ni/NbSe 2 Composites

摘要

This paper presents a facile and effective method for preparing Ni/NbSe 2 composites in order to improve the wettability of NbSe 2 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/NbSe 2 , 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/NbSe 2 . In particular, copper-based composites containing 15 wt.% Ni/NbSe 2 showed the lowest friction coefficient (0.16) and wear rate (4.1 × 10 ?5 mm 3 ·N ?1 ·m ?1 ) among all composites.