| Modeling of severe deformation and mechanical properties in Mg-3Al-1Zn alloy through asymmetric hot-extrusion |
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| 作者姓名： | 常丽丽 王轶农 赵镶 |
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| 作者单位： | Department of Materials Science and Engineering;Dalian University of Technology;Key Laboratory for Anisotropy and Texture of Materials;Ministry of Education;Northeastern University; |
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| 基金项目： | 国家自然科学基金
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| 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 a...
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| 关 键 词： | 工本 |
Modeling of severe deformation and mechanical properties in Mg-3A1-1Zn alloy through asymmetric hot-extrusion |
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| CHANG Li-li,WANG Yi-nong,ZHAO Xiang.Modeling of severe deformation and mechanical properties in Mg-3Al-1Zn alloy through asymmetric hot-extrusion[J].Transactions of Nonferrous Metals Society of China,2008,18(Z1). |
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| Authors: | CHANG Li-li WANG Yi-nong ZHAO Xiang |
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| Affiliation: | CHANG Li-li,WANG Yi-nong,ZHAO Xiang 1.Department of Materials Science , Engineering,Dalian University of Technology,Dalian 116024,China,2.Key Laboratory for Anisotropy , Texture of Materials,Ministry of Education,Northeastern University,Shenyang 110005 |
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| Abstract: | 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 througa 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. |
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| Keywords: | magnesium alloy asymmetric extrusion rigid-plastic FEM texture mechanical properties |
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