TC4钛合金激光表面重熔层内拉伸变形$\{10\bar{1}2\}$孪晶形成机制及马氏体变体选择规律

杨朋飞, 孙磊, 孙奇, 杨志远, 赵元, 高英, 张嘉振

Formation Mechanism of $\{10\bar{1}2\}$ Twins and Selection Rule of Martensitic Variants During Tensile Deformation in TC4 Titanium Alloy Laser Surface Remelting Layer

YANG Pengfei, SUN Lei, SUN Qi, YANG Zhiyuan, ZHAO Yuan, GAO Ying, ZHANG Jiazhen

图2 WQ-LSR试样断口表面{101¯2}孪晶TEM像及选区电子衍射花样

Fig.2 TEM image of the {101¯2} twin on the fracture surface of the WQ-LSR sample and corresponding SAED patterns (Inset shows the orientation of the hexagonal prism corresponds to matrix A, and the highlighted plane represents the {101¯2} twin plane. EB—electron beam)