论文标题
在MG-ZN-GD合金中的14h类型长期堆叠序列（LPSO）结构的14h型长期堆叠序列生长期间的应变自我关注
Strain self-accommodation during growth of 14H type long-period stacking ordered (LPSO) structures in Mg-Zn-Gd alloy
论文作者
论文摘要
已经观察到了14h型长期堆叠有序（LPSO）结构中结构单元（SUS）的合作生长，并且在生长方面没有明显的转化应变积累。该方面的原子结构进一步以CS校正的扫描透射电子显微镜为特征，并且相关的SUS的部分位错是根据不同区域轴上的观测值唯一定义的。发现相邻部分的汉堡向量替代相反，因此转化应变是自会的。此外，通过弹性相互作用的能量来合理化这种自我的机制，用于不同部分的组合。
Cooperative growth of the structure units (SUs) in a 14H type long-period stacking ordered (LPSO) structure has been observed, and there is no obvious accumulation of transformation strain at the growth fronts. The atomic structures at this front are further characterized by Cs-corrected scanning transmission electron microscopy, and the partial dislocations associated SUs are uniquely defined based on the observations at different zone axes. It is found that the Burgers vectors of neighbouring partials are alternatively opposed so that the transformation strain is self-accommodated. Furthermore, this self-accommodation mechanism is rationalized by the elastic interaction energy for combinations of different partials.
