Precipitation of DO19 type metastable phase in Mg-Sn alloy

被引：15
|
作者：
Kim, Y. K. [1 ]
Kim, Do H.
Kim, W. T. [2 ]
Kim, D. H. [1 ]
机构：
[1] Yonsei Univ, Ctr Noncrystalline Mat, Dept Met Engn, Seoul 120749, South Korea
[2] Cheongju Univ, Dept Laser & Opt Informat Engn, Sangdang, South Korea
来源：
MATERIALS LETTERS | 2013年 / 113卷
关键词：
Mg-Sn alloy; Age hardening; DO19 type precipitate; MAGNESIUM; ZN; CA;
D O I：
10.1016/j.matlet.2013.09.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Formation of metastable precipitates in the binary Mg-Sn alloy has been investigated in the present study. The Mg-1.5 at%Sn solid solution alloy exhibits two exothermic reactions during heating up to 673 K, where lower temperature reaction with onset temperature of 364 K corresponds to the formation of metastable DO19 type precipitates, while higher temperature reaction with onset temperature of 466 K to the formation of stable Mg2Sn precipitates. The comparison of aging behavior at 423 K and 473 K indicates that lower temperature aging at 423 K results in retardation of peak aging time, but higher peak hardness due to the precipitation of DO19 type phase. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：50 / 53
页数：4
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