Influence of Loads and Sliding Speed on Tribological Properties of Cu-Based Alloy

The influence of loads and sliding speed on friction and wear properties of Cu-based alloy sliding against GCr15 steel were studied on a MMU-200 tester, and the worn surface morphologies were also analyzed by scanning electron microscope. The results show that as loads and sliding speed increase, the wear loss weight of the Cu alloy increases, and the friction coefficient of the Cu alloy slightly increase with the increase of loads and sliding speed, but less variation. As a result, the dominant wear forms was plough wear, and adhesive wear aggravated under high sliding speed and heavy load.