@article{Hao2024, 
author = {Yiqiang Hao and Lei Zhou and Zhiqing Chen and Zhixian Zhao and Bin Chen},
title = {The growth of β phase in Mg-Gd-Y-Ni alloy by experimental and first-principles study},
year = {2024},
journal = {Journal of Magnesium and Alloys},
volume = {12},
number = {2},
pages = {506-515},
keywords = {HAADF-STEM, First-principles study, Mg-Gd-Y-Ni alloy, β phase, Growth, Interface},
url = {https://www.sciopen.com/article/10.1016/j.jma.2021.11.015},
doi = {10.1016/j.jma.2021.11.015},
abstract = {The paper reports on the atomic investigation about β phase in Mg96Gd2Y1Ni1 alloy by using the first-principles study and the high-angle annular dark-field scanning transmission electron microscope (HAADF-STEM) corrected by atomic Cs. By using HAADF-STEM, the rectangular β phases were observed in the underage and peak aging stages in Mg96Gd2Y1Ni1 alloy. The β phase could be precipitated from the previously precipitated β phase, and the β phase grew in steps when it was precipitated. A special transition structure of three atomic layer thicknesses was first observed at the edge of the β phase and the structure of this interface is probably as the β/Mg1 interface for the analysis of thermodynamic characterization and electronic characterization. The β' phase and the βH structure were precipitated only at the edge of the length directions of the β phase. The β' phase continues to grow into a β phase directly without the formation of β1 phase, resulting in an increase in the length of the β phase, which is discovered for the first time.}
}