材料工程Issue(z1)：39-44,6.
等径角挤压Cu-10%Cr合金过程塑性
Finite Element Analysis of Plastic Deformation Behavior During Equal Channel Angular Pressing of Cu-10%Cr alloy
邓鉴棋 1张修庆 1刘富 1赵祖欣 1叶以富1
作者信息
- 1. 华东理工大学,机械与动力工程学院,上海,200237
- 折叠
摘要
Abstract
Equal channel angular pressing (ECAP) has been the subject of intensive study in recent years due to its capability of producing fully dense samples having a ultrafine grain size and having lots of excellent mechanical properties.In this study,the results of the finite element analysis of Cu-10% Cr material during the ECAP process using Eshelby's equivalent inclusion method were presented.And the two cases,die with ψ= 90°and ψ= 120°,were investigated,including the equivalent strain distribution,the transient variation of strain and deformed shapes and the hardness distribution of section in sample after one pass.The distribution of strain is more homogeneous in the die with ψ=120°than in the die with ψ=90°.And the shear strain in ECAP using the high channel angle die is lower than that using the low channel angle.Additionally,the hardness distribution of ECAP with ψ=90°and ψ=120° has strong relationship with the distribution of the strain in two cases.The die with ψ=90° result shows the higher hardness values and more severe variation range of the hardness distribution.The difference between the two maximum hardness values is about 8.5%.关键词
Eshelby等效夹杂方法/瞬时应变变化/硬度分布Key words
Eshelby's equivalent inclusion method/transient variation of strain/hardness distribution分类
矿业与冶金引用本文复制引用
邓鉴棋,张修庆,刘富,赵祖欣,叶以富..等径角挤压Cu-10%Cr合金过程塑性[J].材料工程,2008,(z1):39-44,6.
