Icosahedron-forming ability of MgZn alloys studied by molecular dynamics simulations

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• 作者：Yong-Chao Liang^a ; Ze-An Tian^a ; Rang-Su Liu^b ; Ting-Hong Gao^a ; Xiao-Tian Guo^a ; Yun-Fei Mo^c ; Quan Xie^a ; ^{qxie@gzu.edu.cn}
• 关键词：Icosahedron-forming ability ; MgZn alloys ; Metallic glass ; Molecular dynamics simulation
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：5 April 2017
• 年：2017
• 卷：700
• 期：Complete
• 页码：61-66
• 全文大小：2613 K
• 卷排序：700

文摘

The Zn-rich alloys possess stronger icosahedral-forming ability. When the percentage of Mg atoms is about 60% in a Zn-centred icosahedra, it is most close to the densest one. The forming ability of GE9IS-ICOs is closely related to the number difference of icosahedra in MgxZn(100-x) alloys. It demonstrates the growth pathway of string-like icosahedra by attaching a 6-atom pentagonal pyramid.