铝基镶嵌材料的磨损特性及耐磨机理

制备了镶嵌硬质金属和固体润滑剂的铝基复合材料，通过设计不同的摩擦配副方式，研究了铝基镶嵌复合材料在室温、干摩擦条件下的摩擦学特性。研究结果表明：镶嵌材料的硬度越大，铝基复合材料的耐磨性越高；而镶嵌固体润滑剂并不能有效地改善铝基材料的耐磨性，对铝基复合材料的耐磨机理进行了力学分析，为铝质材料的摩擦学应用指明了新的途径。

The Wear Behaviors and Anti wear Mechanism of Aluminum Based Embedded Composites

Several aluminum based composites embedded with hard metals and graphite were prepared. The tribological behaviors of the composites under dry reciprocating sliding were investigated with various frictional pair combinations. It has been found that the hardness of the embedding material plays a very important role in the anti wear ability of the composites, the higher the hardness of the embedding material, the better the anti wear ability of the composite. As graphite and PTFE do not increase the mechanical strength of aluminum, the composite embedded with these solid lubricants does not show increased anti wear ability. Based on the structure of the embedded composites, the anti wear mechanism has been analyzed from the mechanical viewpoints. The results are to give help on the tribological application of aluminum and its alloys.