<strong>TC4</strong>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

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

表1 图3a中孪晶变体的分析结果

Table 1 Analyses of twin variants in Fig.3a

Matrix orientation in Euler angle / (°)	Twin type	Twin orientation in Euler angle / (°)	Twin variant
(93.7, 91.4, 45.0)	T1	(9.2, 74.2, 55.8)	( $\bar{1} 102$ )[ $1 \bar{1} 01$ ]
	T2	(178.6, 105.1, 0.0)	( $1 \bar{1} 02$ )[ $\bar{1} 101$ ]
	T4	(9.8, 134.9, 3.4)	( $\bar{1} 012$ )[ $10 \bar{1} 1$ ]
	T5	(168.5,164.6, 45.7)	( $0 \bar{1} 12$ )[ $01 \bar{1} 1$ ]
	T6	(32.7, 16.0, 30.6)	( $01 \bar{1} 2$ )[ $0 \bar{1} 11$ ]