Microstructure,Texture Evolution,and Strain Hardening Behaviour of As-extruded Mg-Zn and Mg-Y Alloys under Compression

作     者：HAN Xiuzhu XIAO Tao YU Zijian HAN Xiuzhu;XIAO Tao;YU Zijian

作者机构：Beijing Institute of Spacecraft System EngineeringBeijing100094China Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing100124China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2023年第38卷第2期

页      面：430-439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：Funded by the Beijing Municipal Natural Science Foundation (No.2202004) the National Natural Science Foundation of China (No.51801048) the Basic Research Fund for Newly Enrolled Teachers and the Fund for Distinguished Young Scholars of China Academy of Space Technology 

主　　题：magnesium alloy texture rare earth twinning strain hardening behavior 

摘      要：Microstructure,texture evolution and strain hardening behaviour of the Mg-1Y and Mg-1Zn(wt%)alloys were investigated under room temperature *** characterization was performed by optical microscopy,scanning electron microscopy,electron back scattered diffraction and transmission electron *** experimental results show that Mg-1Zn alloy exhibits conventional three-stage strain hardening curves,while Mg-1Y alloy exhibits novel six-stage strain hardening *** Mg-1Y alloy,rare earth texture leads to weak tensile twinning activity in compression and consequently results in a moderate evolution to***,inefficient tensile twinning activity and weak slip-twinning interaction give rise to excellent ductility and high hardening capacity but low strain hardening *** Mg-1Zn alloy,basal texture leads to pronounced tensile twinning activity in compression and consequently results in rapid evolution to*** intense tensile twinning activity and strong slip-twinning interaction lead to high strain hardening rate but poor ductility and low hardening capacity.