摩擦表面无机保护膜摩擦学研究进展

就化学热处理表面无机化合物改性层以及润滑油添加剂在摩擦表面形成的摩擦化学反应膜的摩擦学研究现状进行了总结；分析了润滑油添加剂同化学热处理表面相互作用研究的重要性及其对低摩擦、长寿命复合材料制备科学和技术研究的促进作用；指出通过化学热处理可以在材料表面形成由无机化合物组成的表面改性层，从而有效地提高材料的承载和抗磨能力；而润滑油添加剂通过摩擦化学作用亦可在摩擦表面形成主要由无机化合物构成的表面保护膜，从而大幅度地提高摩擦副的减摩抗磨性能，并延长其服役寿命．从摩擦学特别是摩擦学表面改性领域的发展趋势来看，摩擦表面无机保护膜制备技术研究将成为减轻机械设备摩擦磨损和提高其使用寿命的主流热点．

Progress of Tribology of Inorganic Protective Films on Friction Surface

A review was given on the current state and progress of the tribological study on the inorganic surface-modifying layers formed by chemical heat treatment and on the surface-protective films formed on the frictional surface by way of the tribochemical reactions among the lubricating oils, the additives, and the metallic surfaces. The state-of-the-art and the prospects concerning the tribological surface modification and the interaction among the modified surfaces and the lubricating oils and additives were summarized. The topics for further investigations were suggested. It was supposed that the study of the interactions among the lubricating additives and the chemically heat-treated surfaces was to promote the study of the preparation science and technology of composites with reduced friction and extended service life. The lubricating oils and additives functioned to reduce the friction and wear by the generation of inorganic surface protective films on the sliding surface through tribochemical reaction thereon, while the wear resistance and load-carrying capacity of a material was considerably increased by introducing an inorganic surface-modification layer on the surface by way of chemical heat-treatment. It was anticipated that the surface-modification techniques based on inorganic surface protective film in connection with the tribochemical reaction films of the lubricating additives would find wider applications in severe environments.