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4 LPSO/TSFs间{ $10 \bar{1} 2$ }孪晶内部BB界面和{ $10 \bar{1} 1$ }孪晶共存

Fig.4 TEM images of BB interface and { $10 \bar{1} 1$ } twin within { $10 \bar{1} 2$ } twin between LPSO/SFs
(a) high-magnification HAADF-STEM image showing the twin-induced BB boundary within the LPSO structures, where the TB is delineated by a white dashed line
(b) enlarged image of cyan rectangle framed area showing that the BB coexists with {

10 \bar{1} 1

} twin. The FFT images corres-ponding to I~III are inserted
(c) enlarged image of yellow rectangle framed area indicating that the BB (~7°) is connected with TB, and the FFT image is inserted
(d) a set of dislocations are displayed at the BB boundary generated by masking (0002) reflections (shown by the cyan dashed circles) of the two crystals
(e) geometric phase analysis (GPA) further confirming the position of dislocation cores (The colour bar indicates change in strain intensity from -0.25 (compressive) to 0.25 (tensile))