材料期刊网

热喷涂Mo及Mo基复合涂层因熔点高、硬度高、耐磨损、耐腐蚀及高温性能稳定等诸多特点，而广泛应用于机械零件生产及表面修复。随着以资源有效利用和机械产品再制造为一体的可持续发展战略不断推进，此类涂层将拥有更为广阔的应用前景。首先介绍了国内外在热喷涂Mo及Mo基复合涂层方面的研究发展和应用现状；随后依据热喷涂技术的发展历程，分别总结论述了不同热喷涂技术，即火焰喷涂(普通火焰喷涂、高速火焰喷涂)、等离子喷涂(普通等离子喷涂、超音速等离子喷涂、微束等离子喷涂、低压等离子喷涂)及电热爆炸喷涂中， Mo及Mo基复合涂层的制备工艺、涂层性能特点及存在的问题；接着指出了热喷涂Mo及Mo基复合涂层在新概念武器、航空航天等高科技领域的应用前景。最后，就进一步拓展Mo及Mo基复合涂层在贫油减摩、高温高速耐磨、高温耐腐蚀及氧化等复杂环境下的应用范围，结合热喷涂技术的研究热点及发展方向，指出了未来热喷涂Mo及Mo基复合涂层在材料组分设计和工艺优化研究中应重点关注的方面。

ABSTRACT:Owing to the high melting point, high hardness, abrasion resistance, anti-corrosion, stable high temperature proper-ties and many other features, thermal spraying of Mo and Mo-based composite coatings is widely used in the production of mechani-cal parts and surface repairing. With the on-going promotion of sustainable development strategy which combines the effective use of resources and machinery products remanufacturing, these coatings will have more broad application. The research introduced the development and application status of thermal spraying of Mo and Mo-based composite coating at home and abroad. Based on the development of thermal spraying technology, the preparing mechanism, performance and problems of Mo and Mo base composite coatings prepared by flame spraying ( common flame spraying, HVOF) , plasma spraying ( SAPS, MPS and LPPS) and electrother-mal explosion spraying were summarized respectively. The application prospects of thermal spraying of Mo and Mo-based composite coating in the high-tech fields such as new-conception weapons and aerospace industry were also introduced. On expansion of the application scope of Mo and Mo-based composite coatings in severer working conditions such as depleted oil, high temperature and high speed friction, high temperature corrosion and oxidation, some key aspects of the material component design and process opti-mization study of future thermal spraying of Mo and Mo-based composite coatings were pointed out based on the development trend of thermal spraying technology.