Dynamic modeling of twin roll casting AZ41 magnesium alloy during hot compression processing

查看全文 作　　者：[1]王敏;[2]王守仁;[3]S.BKANG;[3]J.H.CHO;[2]王砚军

机构地区：[1]School of Materials Science and Engineering,Shandong University;[2]School of Mechanical Engineering,University of Jinan;[3]Korea Institute of Materials Science,66 Sangnam-dong

出　　处：《Transactions of Nonferrous Metals Society of China》索引2010年第20卷第B07期,共6页

基　　金：Project(Y2008F27)supported by the Natural Science Foundation of Shandong Province,China 摘　　要：A dynamic material model of Mg-4.51Al-1.19Zn-0.5Mn-0.5Ca(AZ41,mass fraction,%)magnesium alloy was put forward.The results show that the dynamic material model can characterize the deformation behavior and microstructure evolution and describe the relations among flow stress,strain,strain rates and deformation temperatures.Statistical analysis shows the validity of the proposed model.The model predicts that lower deformation temperature and higher strain rate cause the sharp strain hardening. Meanwhile,the flow stress curve turns into a steady state at high temperature and lower strain rate.The moderate temperature of 350 ℃and strain rate of 0.01 s-1 are appropriate to this alloy. 关键词：镁合金压缩处理双辊铸轧动态模拟低应变速率材料模型变形温度流动应力

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Dynamic modeling of twin roll casting AZ41 magnesium alloy during hot compression processing

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