Transmission electron microscopy investigations of the microstructures in rapidly solidified Mg-Sn ribbons

被引：5
|
作者：
Ye, Li [1 ,2 ,3 ]
Zhuang, Yuanlin [1 ,2 ,3 ]
Zhao, Dongshan [1 ,2 ,3 ]
Jia, Shuangfeng [1 ,2 ,3 ]
Zhou, Jiaping [1 ,2 ,3 ]
Gui, Jianian [1 ,2 ,3 ]
Wang, Jianbo [1 ,2 ,3 ,4 ]
机构：
[1] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China
[2] Wuhan Univ, MOE Key Lab Artificial Micro & Nanostruct, Wuhan 430072, Hubei, Peoples R China
[3] Wuhan Univ, Ctr Electron Microscopy, Wuhan 430072, Hubei, Peoples R China
[4] Cent S Univ, Sci & Technol High Strength Struct Mat Lab, Changsha 410083, Hunan, Peoples R China
来源：
MICRON | 2018年 / 115卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Magnesium-tin based alloys; Rapid solidification; Precipitated phase; High-resolution transmission electron microscopy; CREEP-BEHAVIOR; ALLOY; STRENGTH; SYSTEM;
D O I：
10.1016/j.micron.2018.08.002
中图分类号：
TH742 [显微镜];
学科分类号：
摘要：
Ribbons of an Mg-9.76 wt.%Sn alloy have been fabricated using rapid solidification technology. X-ray diffraction and transmission electron microscopy confirm that the rapidly solidified ribbons consist of alpha-Mg, beta-Mg2Sn and beta ''-Mg3Sn phases. The alpha-Mg grains are refined in the ribbons. The predominant fraction of the beta-Mg2Sn phase distributes at the grain boundaries of the alpha-Mg grains. The minor fraction of the beta-Mg2Sn phase reveals a spherical morphology with a typical grain size of 170 nm. The orientation relationship between the beta ''-Mg3Sn particles and alpha-Mg matrix is identified in the ribbons and an atomic structure model of the beta ''-Mg3Sn phase is proposed.
引用
收藏
页码：1 / 6
页数：6
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