飞机起落架用超高强度钢应用现状及展望

摘要

The paper presents the domestic and overseas current status of the steel applied to aircraft landing gear in combination of the design concept and requirements for aircraft landing gear.The application features and concept of the steel used for landing gear are summarized and the domestic and overseas status are compared.For the moment,the low-alloy ultra-high strength steel and high-alloy ultra-high strength steel are all being used in the material system for aircraft landing gear steel,and the complete technical system for its anti-fatigue manufacturing is built.At present,China's development and application of high strength steel applied to aircraft landing gear is at the world advanced level.At last,the prospect for future development is analyzed.%结合飞机起落架设计思想和需求,介绍国内外飞机起落架用钢的应用及研究进展,总结起落架用钢的应用特点和思路,对比国内外飞机起落架用钢的差距.目前飞机起落架用钢已经形成了低合金超高强度钢和高合金超高强度钢并用的材料体系,建立了完整的抗疲劳制造技术体系.我国起落架用超高强度钢的研制和应用处于国际先进水平.分析讨论了飞机起落架用超高强度钢的发展方向.