论文成果
Modeling of severe deformation and mechanical properties in Mg-3Al-1Zn alloy through asymmetric hot-extrusion
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- 论文类型：期刊论文
- 发表时间：2008-12-01
- 发表刊物：TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
- 收录刊物：SCIE、EI、ISTIC、Scopus
- 文献类型：J
- 卷号：18
- 期号：,1
- 页面范围：S257-S262
- ISSN号：1003-6326
- 关键字：magnesium alloy; asymmetric extrusion; rigid-plastic FEM; texture;
mechanical properties
- 摘要：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.
