镁合金LPSO/SFs结构间{<inline-formula><math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mn mathvariant="normal">10</mml:mn><mml:mover accent="true"><mml:mrow><mml:mn mathvariant="normal">1</mml:mn></mml:mrow><mml:mo>¯</mml:mo></mml:mover><mml:mn mathvariant="normal">2</mml:mn></math></inline-formula>}孪晶交汇机制的原子尺度研究

镁合金LPSO/SFs结构间{

10 \bar{1} 2

}孪晶交汇机制的原子尺度研究

邵晓宏, 彭珍珍, 靳千千, 马秀良

Unravelling the {

10 \bar{1} 2

} Twin Intersection Between LPSO Structure/SFs in Magnesium Alloy

SHAO Xiaohong, PENG Zhenzhen, JIN Qianqian, MA Xiuliang

图1 hcp结构Mg及镁合金中{ $10 \bar{1} 2$ }孪晶变体及长周期有序堆垛(LPSO)结构与孪晶的交互作用示意图

Fig.1 Three crystallographically types of twin-twin interactions formed from six { $10 \bar{1} 2$ } twin variants T _i (i = 1-6) in an hcp Mg lattice
(a) co-zone twins: T₁-T₄ twin-twin pair with the intersection line along <

1 \bar{2} 10

>
(b) non co-zone twins: T₁-T₂twin-twin interaction with the intersection along <

\bar{2} \bar{2} 43

>
(c) non co-zone twins: T₁-T₃ twin-twin interaction with the intersection line along <

0 \bar{2} 21

>
(d) configuration of {

10 \bar{1} 2

} twin boundary in an hcp Mg lattice
(e) {

10 \bar{1} 2

} twin variants formed between the LPSO/SFs (LPSO—long period stacking ordered, SF—stacking fault)