Exceptionally high strength in Mg-3Al-1Zn alloy processed by high-ratio differential speed rolling

被引：63
|
作者：
Kim, W. J. [1 ]
Lee, Y. G. [1 ]
Lee, M. J. [2 ]
Wang, J. Y. [3 ]
Park, Y. B. [2 ]
机构：
[1] Hongik Univ, Dept Mat Sci & Engn, Seoul 121791, South Korea
[2] Sunchon Natl Univ, Dept Mat Sci & Engn, Sunchon 540742, South Korea
[3] Natl Dong Hwa Univ, Dept Mat Sci & Engn, Shoufeng 97401, Hualien, Taiwan
来源：
SCRIPTA MATERIALIA | 2011年 / 65卷 / 12期
关键词：
Differential speed rolling; Magnesium alloy; Recrystallization; Texture; Severe plastic deformation; AL-ZN ALLOY; MAGNESIUM ALLOY; MECHANICAL-PROPERTIES; ROOM-TEMPERATURE; GRAIN-SIZE; MG ALLOY; MICROSTRUCTURE; DUCTILITY; TEXTURE;
D O I：
10.1016/j.scriptamat.2011.09.029
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel route to prepare an ultrahigh-strength commercial Mg-3Al-1Zn (AZ31) alloy was established by optimizing the processing parameters of high-ratio differential speed rolling (HRDSR). After HRDSR at 423 K followed by immediate water quenching, a grain size of 0.6 mu m was obtained. The ultrafine-grained AZ31 exhibited a very high yield stress of 382 MPa. The effects of the HRDSR conditions on the microstructures and mechanical properties of this alloy were examined and discussed. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1105 / 1108
页数：4
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