【摘要】 用MMW-1型销盘式摩擦磨损试验机,对含有金属陶瓷添加剂润滑油对气缸套-活塞环摩擦学特性的影响进行了模拟试验研究;用表面粗糙度仪测量了缸套试样的表面粗糙度;用原子力显微镜对缸套试样表面的微观形貌和摩擦力形貌进行了测试;用韦氏硬度仪测量了缸套试样的表面硬度变化。研究结果表明,气缸套试样表面在这种添加剂作用下,其表面粗糙度和峰高都大幅度降低,展现了金属陶瓷粒子良好的自修复能力,并且这种能力随载荷的增大而增强。表面硬度分析结果也表明,添加剂粒子与摩擦表面的作用也与载荷有关。更多还原

【Abstract】 MMW-1 pin-desk wear and friction tester was used to carry out the simulation experiment and to study the effect of ceramic metal lubricant additives on the tribological behaviors of rubbing pair.The roughness of cylinder liner simples were measured by TR-200,and the surface micro-image of worn cylinder liner samples were investigated by AFM/FFM.The hardness of worn surfaces was measured by MH-6.The research results indicate that the roughness of worn surface and the height of asperity are decreased distinctly,the excellent self-restored capability of ceramic metal additives particles is represented and the capability increases with increasing the loads.The analysis of hardness proves the relation of the load and the action of ceramic metal additives particles further.更多还原