| Flow stress and softening behavior of wrought magnesium alloy AZ31B at elevated temperature |
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| 作者姓名： | 汪凌云 范永革 黄光杰 黄光胜 |
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| 作者单位： | College of Materials Science & Engineering，Chongqing University，College of Materials Science & Engineering，Chongqing University，College of Materials Science & Engineering，Chongqing University，College of Materials Science & Engineering，Chongqing University Chongqing 400044，China，Chongqing 400044，China，Chongqing 400044，China，Chongqing 400044，China |
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| 摘 要： | 1 INTRODUCTIONThewroughtmagnesiumalloyshaveexcellentspecificstrengthandstiffness ,machinability ,dampcapacity ,dimensionalstability ,lowmeltingcostsandare ,hence ,veryattractiveinsuchapplicationsasau tomobile ,aviation ,electronicandcommunicationin dustry16 ] .Investigationsontheflowstressandsofteningbehaviorofmagnesiumalloysathigherformingtem peratureandstrainratehavebeenanimportantsub jectinwroughtmagnesiumalloysforming710 ] .InthispapertheflowstressandsofteningbehaviorofAZ31Bdeform…
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Flow stress and softening behavior of wrought magnesium alloy AZ31B at elevated temperature |
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| WANG Ling yun,FAN Yong ge,HUANG Guang jie,HUANG Guang sheng.Flow stress and softening behavior of wrought magnesium alloy AZ31B at elevated temperature[J].Transactions of Nonferrous Metals Society of China,2003,13(2). |
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| Authors: | WANG Ling yun FAN Yong ge HUANG Guang jie HUANG Guang sheng |
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| Abstract: | The flow stress and softening behavior of AZ31B magnesium alloy in hot compression were investigated. The relationship of flow stress, temperature and strain rate was appropriately described with the exponential form of Zener Hollemen parameter during steady state deformation of alloy at 573723 K, 0.015s -1 . Dynamic recrystallization is the softening mechanism of AZ31B in hot compression. The flow curves of alloy have almost no peak value at 723 K and lower strain rate, presenting feature of geometric dynamic recrystallization. |
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| Keywords: | magnesium alloy compression flow stress dynamic recrystallization |
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