Synthesis of high-strain-rate superplastic magnesium alloy sheets using a high-ratio differential speed rolling technique

被引：37
|
作者：
Kim, W. J. [1 ]
Lee, B. H. [1 ]
Lee, J. B. [2 ]
Lee, M. J. [3 ]
Park, Y. B. [3 ]
机构：
[1] Hongik Univ, Dept Mat Sci & Engn, Seoul 121791, South Korea
[2] Tohoku Univ, Dept Mat Sci & Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan
[3] Sunchon Natl Univ, Dept Mat Sci & Met Engn, Sunchon 540742, South Korea
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 07期
关键词：
Severe plastic deformation; Magnesium alloys; Superplasticity; Ultrafine-grained microstructure; COMMERCIAL ALUMINUM-ALLOYS; DEFORMATION; BEHAVIOR;
D O I：
10.1016/j.scriptamat.2010.06.011
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A method for fabricating high-strain-rate superplastic Mg alloys in sheet form by using a high-ratio differential speed rolling process is described. The ingot-metallurgy processed Mg alloy exhibited a superplastic performance comparable to that of powder-metallurgy counterparts. By optimizing the controlling parameters in the rolling process, an ultrafine-grained microstructure with good thermal stability, which is the desired microstructure for achieving high-strain-rate superplasticity, could be obtained using only a few processing steps. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：772 / 775
页数：4
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