Finite element analysis of severe deformation in Mg-3Al-1Zn sheets through differential-speed rolling with a high speed ratio

被引：85
作者：
Ji, Y. H.
Park, J. J.
Kim, W. J.
机构：
[1] Hongik Univ, Dept Mat Sci & Engn, Seoul 121791, South Korea
[2] Hongik Univ, Dept Mech & Syst Design Engn, Seoul 121791, South Korea
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 454卷
关键词：
magnesium alloy; grain refining; severe plastic deformation; asymmetrical rolling; finite element analysis;
D O I：
10.1016/j.msea.2006.11.076
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Deformation mechanics of differential-speed rolling with a high speed ratio between the upper and lower rolls, which was found to be effective in producing very fine-grained microstructure in Mg-3Al-lZn sheets, has been investigated by means of the rigid-plastic finite element method. The shear strain (3.1) takes a great portion of the total effective strain (similar to 3.5) in average. The magnitude of total effective strain is equivalent to that obtained by equal channel angular pressing on rods after 3-4 passes. (c) 2006 Published by Elsevier B.V.
引用
收藏
页码：570 / 574
页数：5
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