论文标题
在MG-AL-GD合金中长期堆叠有序（LPSO）结构中的域结构和订购的过渡状态
Domain structures and the transitional state of ordering in long-period stacking ordered (LPSO) structures in Mg-Al-Gd alloy
论文作者
论文摘要
已通过扫描透射电子显微镜研究了MG-AL-GD合金中长期堆叠有序（LPSO）结构中排序的过渡状态。发现域是观察到的过渡状态的起源。该状态下的三种新模式可以通过位于不同域中的L12型簇的叠加来充分说明。通过不同的倾斜视图进一步验证了域。在老化过程中，首选域的增长将导致最终有序的LPSO结构。基于域的概念，也可以理解其他稀释合金中有序的LPSO结构较少。
The transitional state of ordering in the long-period stacking ordered (LPSO) structure in Mg-Al-Gd alloy has been investigated by scanning transmission electron microscopy. It is found that the domains are the origin of observed transitional state. Three new patterns of clusters at this state can be fully explained by the superimposition of L12 type clusters located in different domains. The domains are further verified by different tilted views. Growth of preferred domains during ageing process will result in final ordered LPSO structure. Based on the idea of domains, less ordered LPSO structure in other dilute alloys can be also understood.
