Characteristics of Twin Lamellar Structure in Magnesium Alloy during Room Temperature Dynamic Plastic Deformation

查看全文 作　　者：Chao [1]Lou;Xiyan [1]Zhang;Gaolin [1]Duan;Jian [1]Tu;Qing [1]Liu

机构地区：[1]School of Materials Science and Engineering,Chongqing University

出　　处：《Journal of Materials Science & Technology》索引2014年第30卷第1期,共6页

基　　金：supported by National Natural Science Foundation of China(Nos.51071183,50890170 and 51271208);the Fundamental Research Funds for the Central Universities (No.CDJXS11132225) 摘　　要：The microstructures of the as-rolled magnesium alloy subjected to dynamic plastic deformation along the rolling direction have been investigated.Mostly one {1012} twin variant or a twin variant pair is activated in a grain,leading to a parallel {1012} twin lamellar structure.At the stage of twinning-dominated deformation(ε<~8%),lamellar thickness decreases significantly with strain,from 5.55 to 2.49μm.The evolution of lamellar thickness during deformation is directly related to {1012} twin activity.When plastic strain is greater than ~8%,the twin lamellar structure disappears because the volume fraction of twins almost saturates at a value of ~90%. 关键词：变形镁合金塑性变形结构特征室温轧制方向层状结构片层厚度塑性应变

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Characteristics of Twin Lamellar Structure in Magnesium Alloy during Room Temperature Dynamic Plastic Deformation

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