钛合金在航天飞行器上的应用和发展

Application and Development of Titanium Alloys for Aircrafts

主要介绍了高强韧钛合金、高温钛合金、低温钛合金和铸造钛合金及钛合金的先进成形技术在航天飞行器上的应用,指出了钛合金发展现状和趋势。其中对粉末冶金技术和超塑成形/扩散连接(SPF/DB)技术做了较详细的介绍。重点介绍了美国和俄罗斯的粉末冶金技术发展现状和我国粉末钛合金技术在多种型号产品研制中的应用情况。同时指出超塑成形/扩散连接新技术为克服钛合金成形昂贵又难以加工而受到限制的问题提供了新途径。

Applications of high strength ＆ toughness titanium alloys, high-temperature titanium alloys, lower-temperature titanium alloys, and casting titanium alloys in aerospacecrafts are introduced. The status and directions for development of titanium alloys are described. At the same time, advanced forming technologies about titanium alloys applied in aerospacecraft, such as powder metallurgy technique and superplastic forming/diffusion bonding technology （ SPF/DB）, are illustrated. The actuality and development of powder metallurgy technique in America and Russia are introduced in particular, and this technique has already been applied in the development of various types of products in our country. Meanwhile, SPF/DB provides a new approach to overcome some shortages in titanium processing, e. g. , high cost and dif- ficult processing ability.