先进材料在战斗机发动机上的应用与研究趋势

Application and Development Trend of Advanced Materials for Fighter Engine

美国、英国等国家特别重视战斗机发动机材料的发展,通过制订和实施一系列先进材料研究计划,开发和验证轻质高强度材料,为发动机研制提供技术保障。综述各国现役、在研和预研战斗机发动机的材料应用情况,总结树脂基复合材料、钛基复合材料、钛铝金属间化合物、单晶高温合金、粉末高温合金、陶瓷基复合材料、陶瓷热障涂层等材料及其工艺应用趋势。先进材料研究的发展趋势:①向低密度高强度发展,以减轻质量;②向高强度与高耐温能力发展,以提高涡轮进口温度;③向一体化(材料、工艺与结构设计)发展,以实现材料特性与结构的最优组合。

Some countries, such as US and UK pay attention to the development of materials for fighter engines, implement a series of advanced materials technology programs, develop and demonstrate lightweight high-strength materials to provide technology base for the engineering manufacture and development of engine. Application of materials in third, fourth and next generation fighter engine is over- viewed, the development trend of fighter engine materials is concluded that the application of polymer matrix composite, titanium matrix composite, titanium alnminide, lamilloy, single crystal alloy, powder metallurgy superalloy, ceramic matrix composite, thermal barrier coatings is increased. The materials research trend is concluded that the density becomes lighter to reduce the structure weight, the strength and temperature-resistance become higher to increase the turbine inlet temperature, the integration of materials, process and structure design is obtained to improve materials behavior and reduce the manufacture cost.