载荷和摩擦速度对多元铜合金摩擦磨损性能的影响

Influence of Loads and Sliding Speed on Friction and Wear Properties of Multi-component Copper Alloy

利用MMU-200型摩擦磨损实验机研究了载荷和摩擦速度对多元铜合金与GCr15钢对摩时摩擦磨损性能的影响,并用扫描电镜对磨损表面进行了分析。结果表明,多元铜合金的磨损质量损失随载荷和摩擦速度的增加而增大,而合金的摩擦系数则随载荷和摩擦速度的增加略有增大,但增加幅度不大。该铜合金的磨损形式主要是犁削磨损,在高速重载条件下粘着磨损加剧。

The influences of loads and sliding speed on friction and wear properties of multi-component copper 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 mass loss of the copper alloy increases, and the friction coefficient of the copper alloy slightly increases, but less variation. The dominant wear form is plough wear, and adhesive wear aggravates under high sliding speed and heavy load.