Characteristics of Twin Lamellar Structure in Magnesium Alloy during Room Temperature Dynamic Plastic Deformation
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2014年第1期
论文作者：Chao Lou Xiyan Zhang Gaolin Duan Jian Tu Qing Liu
文章页码：41 - 46
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%.
Chao Lou，Xiyan Zhang，Gaolin Duan，Jian Tu，Qing Liu
School of Materials Science and Engineering,Chongqing University
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%.
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