Effects of Nd addition on microstructure and mechanical properties of Mg-6Zn-1Mn-4Sn alloy

被引：30
|
作者：
Hu, Guangshan [1 ,2 ]
Zhang, Dingfei [1 ,2 ]
Tang, Tian [1 ,2 ]
Shen, Xia [1 ,2 ]
Jiang, Luyao [1 ,2 ]
Xu, Junyao [1 ,2 ]
Pan, Fusheng [1 ,2 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400045, Peoples R China
[2] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 634卷
关键词：
Mg-Zn-Mn-Sn-Nd alloy; Extruded; Precipitate; Mechanical properties; HOT DEFORMATION-BEHAVIOR; ZN; AL; GD; TEMPERATURE; EVOLUTION;
D O I：
10.1016/j.msea.2015.03.040
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of Nd addition on the microstructure and mechanical properties of Mg-6Zn-1Mn-4Sn alloy have been investigated. The results show that alpha-Mg, alpha-Mn, Mg7Zn3, Mg2Sn and MgSnNd phases are found in the as-cast Nd-containing alloys. The MgSnNd phase is a high temperature phase which can enhance the age hardening response of the heat-treated alloys. The ZMT614-1.5Nd alloy under the extruded and aged states exhibits higher strength. This is mainly attributed to the fine grains after extruding and high number density of rod-shaped beta'1 precipitates in the alpha-Mg matrix after aging, respectively. (C) 2015 Elsevier B.V. All rights reserved.
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页码：5 / 13
页数：9
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