To_9钛合金是属于马氏体型的(α+β)两相合金,可通过热处理进行强化。目前在国内所研制的钛合金中Tc_9合金是500℃下热强性较好的合金之一。它适合于制作500～550℃下短时或长时工作的另件。例如:用于制作压气机盘、叶片等结构件。根据我国航空工业的需要,为了改善共发动机的性能,减轻重量,增加推重比。合同单位提出在 To_9 titanium alloy belongs to martensite type (α + β) two-phase alloy and can be strengthened by heat treatment. Tc_9 alloy currently developed in China is one of the better hot-strength alloys at 500 ℃. It is suitable for the production of 500 ~ 550 ℃ short or long working piece. For example: for the production of compressor disc, blade and other structural parts. According to the needs of China’s aviation industry, in order to improve the performance of a total of engines, reduce weight, increase the thrust-weight ratio. Contract unit proposed