相比液体润滑剂，固体润滑剂在高温摩擦磨损领域具有明显优势。但大量研究发现，传统固体润滑剂如石墨、二硫化钨、氧化锌、氟化钡和软金属Ag等只能在有限的温度区间内发挥良好的润滑减摩耐磨性能。因此，恰当的选用两种或两种以上固体润滑剂组合为复合固体润滑剂，利用复合固体润滑剂的协同润滑减摩耐磨效应是实现固体自润滑材料宽温域均拥有优异摩擦学性能的有效方法之一。

       本文从固体润滑剂组元、不同添加量等方面设计了适用于低温到高温范围的钛铝基自润滑复合材料，采用放电等离子烧结制备含固体润滑剂WS₂、固体润滑剂ZnO和复合固体润滑剂（WS₂和ZnO）的钛铝基自润滑复合材料。研究了含不同添加量润滑剂的钛铝基自润滑复合材料的微观组织结构特征；不同添加量固体润滑剂的钛铝基自润滑复合材料在25-800°C测试温度区间的摩擦学性能；复合固体润滑剂（WS₂和ZnO）的钛铝基自润滑复合材料材料在25-800°C测试温度区间的协同润滑减摩耐磨性能；采用X射线衍射仪分析了钛铝基自润滑复合材料的表面成分，利用扫描电子显微镜、场发射扫描电镜、光电子能谱仪、X射线衍射仪、电子探针和能谱仪观察分析了复合材料不同测试温度下磨痕和磨痕端口的形貌及其成分，并探讨了钛铝基自润滑复合材料的摩擦磨损与自润滑机理。

       通过高温摩擦磨损试验分析了含0wt.%、5wt.%、10wt.%和15wt.%gut 润滑剂WS₂的钛铝基自润滑复合材料在25-800°C测试温度区间的摩擦学性能。结果表明：固体润滑剂WS₂的添加能够改善钛铝基自润滑复合材料的摩擦学性能，在低温区间（25-400°C）钛铝基自润滑复合材料中WS₂的理想的添加量是10wt.%，使其显示出了较优异的摩擦学性能。

       通过高温摩擦磨损试验分析了含0wt.%、5wt.%、10wt.%和15wt.%固体润滑剂ZnO的钛铝基自润滑复合材料在25-800°C测试温度区间的摩擦学性能。结果表明：固体润滑剂ZnO的添加能够改善钛铝基自润滑复合材料的摩擦学性能，在高温区间（400-800°C）钛铝基自润滑复合材料中ZnO的理想的添加量是10wt.%，使其显示出了较优异的摩擦学性能。

       研究了10wt.% WS₂+10wt.% ZnO复合固体润滑剂的钛铝基自润滑复合材料在25-800°C测试温度区间的摩擦学性能。结果表明：在25-800°C区间，含10wt.% WS₂+10wt.% ZnO的钛铝基自润滑复合材料的摩擦系数和磨损率均明显低于钛铝基自润滑复合材料；其摩擦系数和磨损率基本处于恒定值，在低中温测试区间WS₂发挥润滑减摩耐磨特征，在高温测试区间ZnO发挥润滑减摩耐磨特征；这种不同温域选择性的摩擦学特性为我们认识固体润滑剂的使用和实现宽温域优异摩擦学性能设计提供理论指导与新认识。

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