Low-temperature superplasticity of extruded Mg-Sn-Al-Zn alloy

被引：66
作者：
Park, S. S. [1 ]
You, B. S. [2 ]
机构：
[1] UNIST, Ulsan 689798, South Korea
[2] KIMS, Chang Won 642831, South Korea
来源：
SCRIPTA MATERIALIA | 2011年 / 65卷 / 03期
关键词：
Magnesium alloy; Extrusion; Grain size; Precipitate; Superplasticity; AZ91 MAGNESIUM ALLOY; MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; CREEP RESISTANCE; GRAIN-GROWTH; CAST; MICROSTRUCTURE; TEXTURE;
D O I：
10.1016/j.scriptamat.2011.04.005
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The tensile properties of extruded Mg-Sn-Al-Zn alloy at elevated temperature were investigated. Low-temperature superplasticity was found in the alloy, which exhibited tensile elongations of 410-950% at strain rates in the range 1 x 10(-3)-1 x 10(-4) s(-1) at 473 K. The superplastic deformation behavior was attributed to the fine-grained microstructure, which contained thermally stable Mg2Sn precipitates. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：202 / 205
页数：4
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