| Homogenization and RecrystaHization of AI-6Mg Alloys with and without Sc and Zr |
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| 作者姓名： | 姜锋 尹志民 黄伯云 贺跃辉 陈苏里 |
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| 作者单位： | [1]InstituteofMaterialsSeiertceandEngineering,CentralSouthUniversity,Changsha410083,China [2]StateKeyLaboratoryofPowderMetallurgy,CentralSouthUniversity,Changsha410083,China [3]InstituteofMaterialsSeiertceandEngineering,CentralSouthUniversity,Changsha410083,China／／StateKeyLaboratoryofPowderMetallurgy,CentralSouthUniversity,Changsha410083,China |
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| 摘 要： | Plates of A1-6Mg alloys with and without scandium were prepared by semi-continuous cast, homogenization,hot-rolled, cold-rolled and annealing. Based on studying of effects of temperature and time on hardness and conductivity during homogenization, it was found that homogenization of ingot with Sc and Zr can result in dispersion strengthening.Recrystallization temperature of alloys was studied by hardness method and optical metallographic method. Staring recrystallization temperature of A1-6Mg alloys with Sc and Zr is 375℃, increasing by 150℃ than AI-6Mg alloys without Sc and Zr. Mechanical properties (δb,δ0.2,δ) of hot-rolled alloy with Sc and Zr are 400 MPa, 280 MPa and 18% ; cold-rolled and anneal alloy with Sc and Zr are 420 MPa, 310 MPa and 12% respectively.
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| 关 键 词： | 同质化 再结晶 铝镁合金 硅 锆 稀土元素 冶金方法 |
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