Characterization of phases in a Mg-6Gd-4Sm-0.4Zr (wt.%) alloy during solution treatment

被引：42
作者：
Zhang, Zhenyan [1 ,2 ]
Peng, Liming [1 ,2 ]
Zeng, Xiaoqin [1 ]
Fu, Penghuai [1 ]
Ding, Wenjiang [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2009年 / 60卷 / 06期
关键词：
Mg-Gd-Sm alloy; Microstructure; Crystal structure; Transmission electron microscopy; Scanning electron microscopy; MECHANICAL-PROPERTIES; HEAT-TREATMENT; MG; MICROSTRUCTURE; GD; PRECIPITATION; 540-DEGREES-C; PERFORMANCE; BEHAVIOR; DIAGRAM;
D O I：
10.1016/j.matchar.2009.01.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Phases in as-cast and solution-treated Mg-6Gd-4Sm-0.4Zr (wt.%) alloy have been characterized using transmission electron microscopy in this paper. The intermetallic phase in as-cast microstructure has a face centered cubic crystal structure (a = 2.2879 nm) with a composition of Mg-6.2(Sm0.5Gd0.44) and was dissolved after solution treatment. A particulate phase with a face centered cubic crystal structure (a = 0.5502 nm) was found in the solution-treated microstructure and suggested to already exist in as-cast sample as the nucleus for its further growth during solution treatment. Crown Copyright (C) 2009 Published by Elsevier Inc. All rights reserved.
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收藏
页码：555 / 559
页数：5
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