RETRACTED: Effects of minor scandium on as-cast microstructure, mechanical properties and casting fluidity of ZA84 magnesium alloy(Retracted article. See vol. 587, pg. 397, 2013)

被引:7
作者
Pan, Fusheng [2 ]
Yang, Mingbo [1 ]
Cheng, Liang [1 ]
机构
[1] Chongqing Univ Technol, Mat Sci & Engn Coll, Chongqing 400050, Peoples R China
[2] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400045, Peoples R China
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 527卷 / 4-5期
基金
中国国家自然科学基金;
关键词
Magnesium alloy; Mg-Zn-Al alloys; ZA84; alloy; Sc addition; ZN-AL ALLOYS; CREEP DEFORMATION; TEMPERATURE; SC;
D O I
10.1016/j.msea.2009.09.025
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effects of minor Sc on the as-cast microstructure, mechanical properties and casting fluidity of the ZA84 magnesium alloy were investigated. The results indicate that the Mg-32(Al,Zn)(49) phase in the ZA84 alloy is refined with the addition of 0.12-0.35 wt.% Sc, and the formation of the Mg-32(Al,Zn)(49) phase is suppressed. An increase in Sc amount from 0.12 wt.% to 0.35 wt.% causes the morphology of the Mg-32(Al,Zn)(49) phase to gradually change from coarse continuous and/or quasi-continuous net to relatively fine quasi-continuous and/or disconnected shapes. In addition, it is shown that the tensile and creep properties of the ZA84 alloy are improved, but the casting fluidity of the alloy is decreased with the addition of 0.12-0.35 wt.% Sc. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1074 / 1081
页数:8
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