@article{b1c3801da34b48978d88051d5bfe51ac,
title = "Ordered Sn distribution adjacent to the precipitate-matrix interface in a Mg–9.8wt.%Sn alloy",
abstract = "The major interface between β′-Mg3Sn precipitate plate and the α-Mg matrix in a Mg-9.8wt.% alloy has been investigated using aberration-corrected scanning transmission electron microscopy and first-principles calculations. It is found that Sn atoms orderly distribute in the single layer of the α-Mg matrix immediately adjacent to the broad surface of β′ at the early stage of ageing. These Sn atoms substitute Mg atoms located at the centers of equilateral triangles constituted by three Mg columns in the outmost layer of β′. First-principles calculations suggest that the ordered Sn distribution is energetically favored and it not only decreases the interfacial energy of the β′-matrix interface but also hinders the occurrence of 1/3<011¯0>α shear that thickens the β′ plate.",
keywords = "First-principles calculations, HAADF-STEM, Mg-Sn alloys, Ordered distribution of solute atom",
author = "Chaoqiang Liu and Houwen Chen and Min Song and Nie, {Jian Feng}",
note = "Funding Information: This work is financially supported by National Natural Science Foundation of China ( 52101167 and 52071033 ), Natural Science Foundation Project of CQ ( cstc2020jcyj-msxmX0832 ), and the Fundamental Research Funds for the Central Universities ( 2020CDJ-LHZZ-085 ). Project also supported by State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China. This work was supported in part by the High Performance Computing center of the Central South University. JFN acknowledges the support from the Australian Research Council and computational resources provided by the Australian Government through Pawsey under the National Computational Merit Allocation Scheme and the use of the National Computational Infrastructure. Publisher Copyright: {\textcopyright} 2022",
year = "2022",
month = jul,
doi = "10.1016/j.jma.2022.03.009",
language = "English",
volume = "10",
pages = "1909--1914",
journal = "Journal of Magnesium and Alloys",
issn = "2213-9567",
publisher = "Ke Ai Publishing Communications Ltd.",
number = "7",
}