高温润滑抗磨材料的研究对发展航空航天、兵器和装备制造等高温运动部件具有重大的理论意义和应用价值。目前，我国在高温润滑抗磨领域的研究相对落后。传统的高温自润滑复合材料和涂层存在力学性能差、涂层太薄以及基底和涂层结合较弱的缺点。本项目拟通过粉末冶金技术同时制备镍基合金基底及其宽温域高温自润滑原位厚复合涂层材料。研究涂层中基体成分、润滑相和抗磨相之间的相容性和相互作用，研究制备工艺条件对材料微结构和力学与摩擦学性能的影响，优化制备工艺参数，提出适合不同环境条件的宽温域镍基高温自润滑原位厚复合涂层材料的组分、结构设计原则和制备工艺控制方法，研究系统条件下高温自润滑原位厚复合涂层材料的摩擦磨损行为规律，揭示材料的润滑机理。本项目的成功实施，将深入认识高温润滑抗磨理论，为发展我国先进的高温自润滑复合材料和涂层奠定理论基础，为解决相关领域的实际应用问题提供技术支撑。

Research in high-temperature lubrication and wear-resistant materials is significant in the development of moving parts that work at high temperatures in the areas of aerospace, ordnance and equipment manufacture. However, at present the study in this area is less developed in China. Traditional high-temperature self-lubricating composites and coatings suffer from disadvantages including poor mechanical properties, coating layers being too thin, and weak binding between the coating and the substrate. In this proposal, we aim to develop in situ high-temperature self-lubricating thick composite coatings on nickel alloy substrate using a powder metallurgy technique. In more detail, we will systematically study (1) compatibility and interaction among matrix, solid lubricants and wear-resistance phases in the coatings; (2) effects of processing conditions on microstructures and mechanical and tribological properties of the coatings and optimization of the processing parameters; (3) composition and microstructure design principles and processing control methods of in situ high-temperature self-lubricating composite coatings over a wide temperature range suitable for different environments; (4) high-temperature friction and wear behavior laws of the thick coatings; (5) high-temperature lubrication mechanisms of the materials. We expect the following significant beneficial outcomes from this proposal: (1) deeper understanding of high-temperature lubrication and wear-resistance theory that is currently lack in China; (2) development of the theoretical foundation in advanced high-temperature self-lubricating composite materials and coatings; (3) development of the corresponding technical support for solving practical application problems in related fields.