耦合孪生的TWIP钢单晶体塑性变形行为模拟研究

孙朝阳, 郭祥如, 黄杰, 郭宁, 王善伟, 杨竞

MODELLING OF PLASTIC DEFORMATION ON COUPLING TWINNING OF SINGLE CRYSTAL TWIP STEEL

SUN Chaoyang, GUO Xiangru, HUANG Jie, GUO Ning, WANG Shanwei, YANG Jing

表2 TWIP钢12个孪生系的孪生面和孪生方向

Table 2 Twinning planes and twinning directions for TWIP steel with 12 twinning systems

Twinning system	Twinning plane	Twinning direction	Twinning system	Twinning plane	Twinning direction
t₁	$\begin{matrix} (111) \end{matrix}$	$\begin{matrix} [11 \overset{?}{2}] \end{matrix}$	u₁	$\begin{matrix} (\overset{?}{1} \overset{?}{1} 1) \end{matrix}$	$\begin{matrix} [112] \end{matrix}$
t₂	$\begin{matrix} (111) \end{matrix}$	$\begin{matrix} [\overset{?}{2} 1 1] \end{matrix}$	u₂	$\begin{matrix} (\overset{?}{1} \overset{?}{1} 1) \end{matrix}$	$\begin{matrix} [2 \overset{?}{1} 1] \end{matrix}$
t₃	$\begin{matrix} (111) \end{matrix}$	$\begin{matrix} [1 \overset{?}{2} 1] \end{matrix}$	u₃	$\begin{matrix} (\overset{?}{1} \overset{?}{1} 1) \end{matrix}$	$\begin{matrix} [\overset{?}{1} 21] \end{matrix}$
v₁	$\begin{matrix} (\overset{?}{1} 11) \end{matrix}$	$\begin{matrix} [211] \end{matrix}$	w₁	$\begin{matrix} (1 \overset{?}{1} 1) \end{matrix}$	$\begin{matrix} [121] \end{matrix}$
v₂	$\begin{matrix} (\overset{?}{1} 11) \end{matrix}$	$\begin{matrix} [1 2 \overset{?}{1}] \end{matrix}$	w₂	$\begin{matrix} (1 \overset{?}{1} 1) \end{matrix}$	$\begin{matrix} [2 1 \overset{?}{1}] \end{matrix}$
v₃	$\begin{matrix} (\overset{?}{1} 11) \end{matrix}$	$\begin{matrix} [1 \overset{?}{1} 2] \end{matrix}$	w₃	$\begin{matrix} (1 \overset{?}{1} 1) \end{matrix}$	$\begin{matrix} [\overset{?}{1} 1 2] \end{matrix}$