目前,提出的钛合金按相成份的分类法已得到公认,该分类法包括有α、近α+β、近β、β钛合金和以钛金属间化合物为基的合金。有时还分出过渡类型合金,如BT22和BT30合金。过渡类型合金的成份接近于第二临界浓度,因此其组织与热处理规范的关系极 At present, the classification method of the phase-by-phase composition of titanium alloy has been put forward. The classification method includes α, near α + β, near β, and β titanium alloys and titanium based intermetallic compounds. Transitional types of alloys are also sometimes separated, such as BT22 and BT30 alloys. Transitional alloy composition close to the second critical concentration, so the relationship between the organization and heat treatment standard pole