Application of mixture rule to finite element analysis for forging of cast Mg-Zn-Y alloys with long period stacking ordered structure

被引：19
|
作者：
Matsumoto, Ryo [1 ]
Otsu, Masaaki [2 ]
Yamasaki, Michiaki [3 ]
Mayama, Tsuyoshi [4 ]
Utsunomiya, Hiroshi [1 ]
Kawamura, Yoshihito [3 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, Suita, Osaka 5650871, Japan
[2] Univ Fukui, Fac Engn, Dept Mech Engn, Fukui 9108507, Japan
[3] Kumamoto Univ, Grad Sch Sci & Technol, Dept Mat Sci & Engn, Kumamoto 8608555, Japan
[4] Kumamoto Univ, Prior Org Innovat & Excellence, Kumamoto 8608555, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 548卷
基金：
日本科学技术振兴机构;
关键词：
Forging; Magnesium alloy; Flow stress; Mixture rule; Finite element analysis; MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; MICROSTRUCTURE; EVOLUTION; STRENGTH; PHASE;
D O I：
10.1016/j.msea.2012.03.088
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
To establish forging process for high strength Mg-Zn-Y alloys with a long period stacking ordered (LPSO) structure, the flow stresses of Mg-Zn-Y alloys with different volume fractions of LPSO phase were measured by the upsettability test. Since mixture rule for the flow stress was satisfied in Mg-Zn-Y two-phase (alpha-Mg and LPSO) alloys, the flow stresses of alpha-Mg and LPSO single phase alloys were estimated from the flow stresses of Mg-Zn-Y alloys with different volume fractions of LPSO phase. To examine the validity of the mixture rule, the finite element analysis for tensile test and forging of as-cast Mg-Zn-Y alloy was carried out using the estimated flow stresses of alpha-Mg and LPSO single phase alloys on the basis of mixture rule of the properties of Mg-Zn-Y alloy. The calculated load-stroke curves in tensile test and forging agreed well with the experimental ones, and the deformation behaviour of Mg-Zn-Y alloy was discussed. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：75 / 82
页数：8
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