钛合金作为航空航天用的轻质高温材料引人注目，但其切削加工性能差，特别是制成像飞机结构件那样形状复杂的零件，成品率很低．而塑性加工则对提高其加工成品率十分有效．人们期待着超塑性加工性能优异，且机械性能良好的钛合会的开发．为了设计出适合趋塑性加工的钛合金，必 Titanium alloy is attracting attention as a lightweight high-temperature material for aerospace applications, but its machining performance is poor. In particular, the production of parts with complex shapes such as aircraft structural parts is very inefficient. The plastic processing is to improve the processing yield is very effective. People look forward to superplastic processing performance, and good mechanical properties of the development of titanium. In order to design suitable for plastic processing titanium alloy, will