为了研究固体润滑膜的耐候性失效行为,利用考夫曼离子源与磁控溅射相结合的离子束辅助沉积(IBAD)技术在9310基底材料上制备Ag掺杂WS2固体润滑膜.通过海南湿热环境挂片、摩擦磨损性能测试以及Pro-XPS、XRD和FESEM检测技术,检测膜层的耐候性能、摩擦磨损性能并表征测试前后的化学态、物相与表面形貌等,分析膜层在海南湿热环境下的失效机理.研究结果表明:制备的WS2-Ag固体润滑膜实现了纳米级Ag颗粒的掺杂,WS2与Ag皆为六方层状晶体结构,维持0.05摩擦因数的时间超过600 min.挂片试验后复合膜表层生成WO3和AgO2,内部形成非晶AgO2,WO3含量降低甚至消失;氧化物的形成影响了转移膜的形成与磨粒磨损过程,进而导致复合膜的润滑性能降低,使其维持低摩擦因数(0.09)的时间降至30 min.
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