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对于含ＭｏＳ２的复合材料在单向滑动摩擦条件下的实用性能，人们已经进行了比较多的研究，然而好多摩擦部件在工程实际中经受的却都是往复摩擦。为了探明热压Ｎｉ－ＭｏＳ２复合材料的自润滑性能及其耐磨机理，在往复摩擦条件下研究了这种材料盘表面和偶件ＧＣｒ１５钢球表面之ＭｏＳ２膜的形成过程与形貌特征，并且利用扫描电子显微镜等观察分析了ＭＯＳ２膜的磨损表面形貌及其微区成分。结果表明，在给定的往复摩擦条件下，对偶双方表面都形成了具有层状结构的ＭｏＳ２润滑膜，这种膜是通过疲劳剥落、转移、粘附与叠压等方式所形成；ＭｏＳ２含量对Ｎｉ－ＭｏＳ２复合材料自润滑性能的影响，主要取决于它是否能够在对偶双方表面形成分布均匀而稳定的润滑膜，含６０％（ｗｔ）ＭｏＳ２的复合材料的自润滑性能最好；Ｎｉ－ＭｏＳ２复合材料的自润滑性是通过其表面ＭｏＳ２膜的连续生成与疲劳剥落，并在偶件表面形成转移膜，使复合材料与金属间的摩擦变成复合材料表面ＭｏＳ２膜与偶件表面ＭｏＳ２膜之间的摩擦所实现。由此可见，Ｎｉ－ＭＯＳ２复合材料是适合在往复摩擦运动场合应用的一种性能良好的自润滑复合材料。
Much research has been done on the practical properties of MoS2-containing composites under unidirectional sliding friction conditions. However, a lot of frictional parts are subjected to reciprocating friction in engineering practice. In order to investigate the self-lubricating properties of hot pressed Ni-MoS2 composites and their wear resistance mechanism, the forming process and morphology of MoS2 films on GCr15 steel balls were studied under reciprocating friction conditions. The wear surface morphology and the micro-area composition of the MOS2 film were observed and analyzed by using a scanning electron microscope. The results show that under the given reciprocating friction condition, the MoS2 lubricating film with layered structure is formed on the surface of both sides, the film is formed by means of fatigue peeling, transfer, adhesion and lamination; MoS2 content The self-lubricating properties of Ni-MoS2 composites depend mainly on whether it can form a uniform and stable lubricating film on both surfaces. The self-lubricating properties of composites containing 60wt% MoS2 are the best. Ni-MoS2 The self-lubricity of the composite material is caused by the continuous formation of the MoS2 film and fatigue spalling on the surface of the composite material, and the transfer film is formed on the surface of the even element so that the friction between the composite material and the metal becomes the MoS2 film on the composite surface and the MoS2 film on the surface of the even element Between the friction achieved. Thus, Ni-MOS2 composite material is suitable for reciprocating friction sports applications a good performance of self-lubricating composite materials.