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

页码：1 / 6

页数：6

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