Investigation of the alloying effect on deformation behavior in Mg by Visco-Plastic Self-Consistent modeling

作     者：Alireza Maldar Leyun Wang Gaoming Zhu Xiaoqin Zeng Alireza Maldar;Leyun Wang;Gaoming Zhu;Xiaoqin Zeng

作者机构：National Engineering Research Center of Light Alloy Net FormingSchool of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China The State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai 200240China 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2020年第8卷第1期

页      面：210-218页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：The authors gratefully acknowledge the financial support of the projects from the National Natural Science Foundation of China(Nos.51631006 51671127 51825101) 

主　　题：Mg alloys Crystal plasticity Slip EBSD Tensile test 

摘      要：Alloying elements can drastically alter the deformation behavior of *** the present work,Visco-Plastic Self-Consistent(VPSC)modeling was employed to investigate the effect of alloying elements on Mg’s tensile behavior,in particular the relative activity of different slip and twinning ***-0.47 wt.%Ca,Mg-2 wt.%Nd,and AZ31 extruded alloys were deformed by micro-tensile tests in a scanning electron microscope(SEM).Texture and grain size measured by electron backscatter diffraction(EBSD)were used as the input for *** parameter optimization,the VPSC model successfully reproduced the stress-strain curve of each *** results indicate that the slip/twinning activity in the three alloys are ***-0.47 wt.%Ca shows strong extrusion texture,and prismatic slip was quite active during its tensile *** contrast,Mg-2 wt.%Nd shows weak extrusion texture,and basal slip was *** alloy also developed more twinning activity than the other two ***31 shows strong extrusion texture similar as Mg-0.47 wt.%Ca,but prismatic slip was less active in *** slip/twinning activity revealed by the VPSC model can explain the difference in the tensile behavior of the three alloys.