针对钛合金本身摩擦学性能差，无法作为摩擦副运动部件在工业中得到广泛应用的问题，申报的项目瞄准节能减排新标准实现关键的钛合金用作发动机运动部件所提出的强化与润滑一体化的技术需求，在我们现有的研究工作基础上，提出基于钛合金表面构筑的氧化物基自催化润滑薄膜在摩擦过程中催化降解润滑油分子在接触区原位构筑DLC薄膜而起到减摩、耐磨性能的设计思想，系统关注自催化润滑薄膜诱发表面摩擦催化效应实现润滑油分子经摩擦催化降解原位生成的DLC薄膜的结构及摩擦学特性，通过多元掺杂技术合理调控氧化物基自催化润滑薄膜的结构、力学及机械性能，探讨自催化润滑薄膜中掺杂元素的价态、颗粒的大小、在氧化物载体的分散度等因素对薄膜摩擦学性能的影响规律，从分子层次上揭示自催化润滑薄膜与润滑油及添加剂的表面交互作用及减摩、耐磨机制，研究结果可望为节能减排新标准实现关键的高性能发动机零部件强化与润滑一体化改性技术提供新的思路。

It is well known that titanium alloys cannot be used as sliding parts because of their poor tribological performance. The research project here is proposed to develop a new technology for integration of strengthening and lubrication of titanium alloy as moving parts in high performance engine, which plays great role in meeting the technical requirements of the new standard of energy saving and emission reduction. Based on our existing research work, oxide-based self-catalytic lubrication film on titanium surface is fabricated. The DLC film is supposed to be in-situ formed on the contact area by catalytic degradation of lubricating oil molecule with help of self-catalytic lubrication film. Several technologies are used to investigate the structure, mechanical and tribological properties of oxide-based self-catalytic lubricating films. The effects of physical and chemical properties, such as valence state and particle size of doped elements, its dispersion degree in oxide, on the tribological properties of solid-liquid composite lubrication system are discussed and the mechanism of synergistic lubrication is proposed. The interface interaction between self-catalytic lubrication film and lubricating oil and additives as well as the mechanism of friction reduction and wear resistance are revealed from the molecular level. It is anticipated that the research results would provide a new technology for the integration of strengthening and lubrication modification of high performance engine parts in the new standard of energy saving and emission reduction.