聚片孪生功能基元序构的高性能<strong>TiAl</strong>合金

聚片孪生功能基元序构的高性能TiAl合金

陈光, 陈奉锐, 朱德民, 李贵忠, 李罗, 宋伟东, 王子特, 相恒高, 陈旸, 祁志祥

Polysynthetic Twinned High-Performance TiAl Alloy with Ordered Structures of Functional Units

CHEN Guang, CHEN Fengrui, ZHU Demin, LI Guizhong, LI Luo, SONG Weidong, WANG Zite, XIANG Henggao, CHEN Yang, QI Zhixiang

图2 聚片孪生功能基元序构TiAl合金界面类型^[29]

Fig.2 Types of interface of polysynthetic twinned TiAl alloy with ordered structures of functional units (a1, a2) γ/α₂ phase interfaces from <1 $\bar{1}$ 0] _γ^[29] (a1) and <0 $\bar{1}$ 1] _γ (a2) directions (b1, b2) 180° γ/γ true twin (TT) interfaces from <110] $_{γ_{A}}$ ^[29] (b1) and <011] $γ_{A}$ (b2) directions (Where γ_A is the matrix, γ_AT is the 180° TT) (c) 60° γ/γ pseudo twin (PT) interface^[29] (Where γ_B is the 60° PT) (d) 120° γ/γ ordered domain (OD) interface^[29] (Where γ_C is the 120° OD)