TC11钛合金中 α''相和α'相的组织演变和显微硬度

TC11钛合金中 α''相和α'相的组织演变和显微硬度

张英东,李阁平,刘承泽,袁福森,韩福洲,Ali Muhanmmad,顾恒飞

Microstructure Evolution of α''-Phase and α'-Phase and Microhardness of TC11 Titanium Alloy

Yingdong ZHANG,Geping LI,Chengze LIU,Fusen YUAN,Fuzhou HAN,Muhanmmad Ali,Hengfei GU

图11 β相、α"相以及α'相的晶体结构示意图

Fig.11 Crystal structures of the β-phase, α"-phase and α'-phase (a) a-,b- and c-axes of β-phase structure correspond to the [001],

[\bar{1} 10]

and [110] lattice vectors of the original bcc structure, respectively (b)-(g) a-,b- and c-axes of α"-phase structure (935~985℃ solution treatment) correspond to the

[\bar{1} 00]

, [010] and [001] lattice vectors of the original orthorhombic structure，respectively (d) The a-,b- and c-axes of α'-phase structure correspond to the

[\bar{1} \bar{1} 0]

, [110] and [001] lattice vectors of the original hcp structure, respectively