对β退火温度和退火时间及冷却速度等对Ｔｉ－１１００合金的β晶粒度及。α＋β片域大小、形状的影响进行了研究，结果表明，Ｔｉ－１１００合金的β晶粒度和。α＋β片域大小随退火温度和时间增加而增大，随冷却速度增大而减小；β晶粒度与退火时间关系可用一幂函数Ｄｎ＝Ｋｔ表示，而与退火温度呈复杂函数关系；自β退火温度下缓冷时产生较大α＋β片域，而快冷时形成网篮状组织。 The β crystal grain size and the β annealing temperature and annealing time and cooling rate on the Ti-1100 alloy. α + β domain size and shape of the impact of the study, the results show that the Ti-1100 alloy β grain size and. The size of α + β increases with the increase of annealing temperature and time and decreases with the increase of cooling rate. The relationship between β grain size and annealing time can be expressed as a power function Dn = Kt, which shows a complex function with annealing temperature. β annealed at a slow cooling temperature α + β large area, while the formation of net basket-like organization when cold.