不同温度下半金属摩擦材料的摩擦磨损性能研究

利用Ｄ－ＭＳ型定速摩擦试验机，考察了２种润滑相对半金属摩擦材料摩擦系数和磨损率随温度变化的影响情况，并采用扫描电子显微镜（ＳＥＭ）和Ｘ射线能量色散谱等（ＥＤＡＸ）分析了２种复合摩擦材料中各组分对摩擦磨损性能的交互作用，揭示了半金属摩擦材料摩擦磨损的特性和机制。

Friction and Wear Behavior of Two Semi-metallic Friction Materials

The friction and wear behavior of two semi metallic friction materials containing MoS 2 or graphite as the lubricating phase has been investigated on a D MS friction and wear tester. The morphology and elemental compositions of the wear debris have been examined by means of scanning electron microscopy and energy dispersive spectrometry, respectively. The wear mechanism of the friction materials is discussed by taking into account the interaction among the lubricating phase and the other components. As the results, MoS 2 and graphite show difference in terms of the interaction with the other components in the friction materials. The friction material containing MoS 2 show better wear resistance than that containing graphite. This is because MoS 2 as the lubricating component does not enhance pulling out and wear of the steel fiber in the friction material by way of carburization. The wear debris is mainly composed of Fe, Ca, and Sb.