Domain structures and the transitional state of ordering in long-period stacking ordered (LPSO) structures in Mg-Al-Gd alloy
Materials Science
2020-06-05 v1
Abstract
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.
Keywords
Cite
@article{arxiv.2006.02606,
title = {Domain structures and the transitional state of ordering in long-period stacking ordered (LPSO) structures in Mg-Al-Gd alloy},
author = {Xin-Fu Gu and Tadashi Furuhara and Leng Chen and Ping Yang},
journal= {arXiv preprint arXiv:2006.02606},
year = {2020}
}