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采用半干法制备碳纤维织物增强环氧树脂基自润滑复合材料,研究钢背衬复合材料与45钢在环-环端面浸油润滑状态下的摩擦学特性,考查载荷、速度和碳织物类型对复合材料摩擦磨损性能的影响,并采用扫描电子显微镜对复合材料及偶件磨损表面进行观察与分析.结果表明:轻载高速启动可显著提高单向碳织物/环氧复合材料的摩擦磨损性能,边界润滑状态下的碳织物/环氧复合材料主要表现出黏着磨损特性,对偶钢环上出现的网状转移膜大大改善了材料的摩擦学性能;平纹碳织物/环氧复合材料因表面织物纹理使得润滑油能深入到摩擦表面各区域,在重载下表现出较低的摩擦系数.
The semi-dry carbon fiber fabric reinforced epoxy resin-based self-lubricating composite material was prepared. The tribological properties of the steel-backed composite material and 45 steel under the oil-lubricated condition of ring-ring end surface were studied. The effects of load, velocity and carbon fabric type The friction and wear properties of the composites were studied.The scanning electron microscopy (SEM) was used to observe and analyze the wear surface of the composite materials and the couples.The results showed that the light-load and high-speed start-up can significantly improve the friction and wear properties of the unidirectional carbon fabric / epoxy composites, The carbon fiber / epoxy composites with the boundary lubrication mainly exhibited the adhesive wear characteristics. The mesh transfer film appearing on the dual steel rings greatly improved the tribological properties of the materials. The plain carbon / epoxy composites due to the surface texture This allows the lubricant to penetrate deep into all areas of the friction surface and exhibit a lower coefficient of friction under heavy loads.