钛合金在典型民用飞机机体结构上的应用现状

摘要

The application of titanium alloy for the commercial aircraft fuselage can make the structure weight saving ,and improve fatigue life and the corrosion-resistant capability .The quantity of titanium alloy increased in the most advanced commercial aircrafts .The properties and advantages of the titanium alloys are described in detail .The recent applications of titanium alloys and fasteners on commercial aircrafts are introduced and the reason is analyzed .The opportunity and the challenge of titanium alloy applications are also presented .We pro-vide a reference for research and development of commercial aircraft in China .%民用飞机机体结构通常采用钛合金以实现结构减重、改善疲劳寿命、提高耐腐蚀性，当代先进的民用飞机普遍提高了钛合金的用量。从钛合金的特点及其应用优势出发，介绍了钛合金在先进民用飞机机体结构中的应用现状并分析原因，总结并提出了钛合金在民用飞机机体结构上应用的机遇和挑战，为我国民用飞机的研发和发展提供参考和借鉴。