Finite element analysis of strain distribution in ZK60 Mg alloy during cyclic extrusion and compression

被引：14

作者：

Lin Jin-bao ^{[1
,2
]}

Wang Qu-dong ^{[1
]}

Liu Man-ping ^{[1
]}

Chen Yong-jun ^{[3
]}

Roven, Hans J. ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200240, Peoples R China

[2] Taiyuan Univ Sci & Technol, Sch Appl Sci, Taiyuan 030024, Peoples R China

[3] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, NO-7491 Trondheim, Norway

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 08期

基金：

中国国家自然科学基金;

关键词：

cyclic extrusion and compression; finite element method; friction; ZK60 magnesium alloy; strain homogeneity; CHANNEL ANGULAR EXTRUSION; DEFORMATION-BEHAVIOR; MICROSTRUCTURAL EVOLUTION; MECHANICAL-PROPERTIES; SIMULATION; FRICTION; ALUMINUM; RANGE;

D O I：

10.1016/S1003-6326(11)61405-2

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Finite element method was used to study the strain distribution in ZK60 Mg alloy during multi-pass cyclic extrusion and compression (CEC). In order to optimize the CEC processing, the effects of friction condition and die geometry on the distribution of total equivalent plastic strain were investigated. The results show that the strain distributions in the workpieces are inhomogeneous after CEC deformation. The strains of the both ends of the workpieces are lower than that of the center region. The process parameters have significant effects on the strain distribution. The friction between die and workpiece is detrimental to strain homogeneity, thus the friction should be decreased. In order to improve the strain homogeneity, a large corner radius and a low extrusion angle should be used.

引用

页码：1902 / 1906

页数：5

共 17 条

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