Modeling of severe deformation and mechanical properties in Mg-3Al-1Zn alloy through asymmetric hot-extrusion

作者：Chang Li li; Wang Yi nong^*; Zhao Xiang

来源：Transactions of Nonferrous Metals Society of China, 2008, 18: S257-S262.

• magnesium alloy
• asymmetric extrusion
• rigid-plastic FEM
• texture
• mechanical properties

One-pass asymmetric hot extrusion performed at 673 K was applied to fabricate an AZ31 magnesium alloy sheet. Finite element method (FEM) was used to model the process of asymmetric hot-extrusion. Simulation results indicate that strain rate gradient through the thickness introduced a grain size gradient along the thickness direction and shear deformation during the asymmetric hot-extrusion results in weakened and tilted (0002) basal texture. The asymmetric hot extrusion effectively weakens the basal texture and improves the ductility at room temperature.

• 出版日期2008-12
• 单位东北大学; 大连理工大学