| 真空硅热同步还原制备镁锰研究 |
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| 引用本文： | 郑笑芳,彭晓东,苏中华.真空硅热同步还原制备镁锰研究[J].轻金属,2011(11). |
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| 作者姓名： | 郑笑芳 彭晓东 苏中华 |
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| 作者单位： | 重庆大学国家镁合金材料工程技术研究中心,重庆400030;重庆大学材料科学与工程学院,重庆400045 |
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| 基金项目： | 国家重点基础研究发展计划资助项目(2007CB613702); 科技部国际合作项目(2010DFR50010) |
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| 摘 要： | 阐述锰在镁合金中的作用以及镁锰合金的性能、应用与制备.为了提高镁锰合金中的含锰量,制备新型镁合金及南含锰量Mg - Mn中间合金,分析富锰渣硅热还原的基本原理,提出真空硅热还原制备镁锰合金的新方法.通过热力学分析真空硅热同步还原MgO、MnO,其平衡蒸汽压关系是:Mn的平衡蒸汽压＞Mg的平衡蒸汽压＞系统压强；同步还原条件是:P系≤102 Pa,T还≥1517K;还原温度为1550K时,同步固化冷凝温度T＜922K.研究设计了真空熔融及热还原设备用于实验研究真空硅热同步还原制备镁锰.
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| 关 键 词： | 热还原 镁锰合金 富锰渣 MgO MnO |
Study on preparation of Mg-Mn by vacuum silicothermic reduction |
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| ZHENG Xiao-fang
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PENG Xiao-dong
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SU Zhong-hua.Study on preparation of Mg-Mn by vacuum silicothermic reduction[J].Light Metals,2011(11). |
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| Authors: | ZHENG Xiao-fang PENG Xiao-dong SU Zhong-hua |
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| Affiliation: | ZHENG Xiao-fang1,2,PENG Xiao-dong1,2 and SU Zhong-hua1,2 (1.National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400030,China,2.College of Material Science and Engineering,Chongqing 400045,China) |
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| Abstract: | Function of Mn in magnesium alloys and performance,application,preparation of Mg-Mn alloys were expatiated.In order to increase the Mn contents in Mg-Mn alloy for preparing new magnesium alloys and Mg-Mn master alloy with high Mn,the silicothermic reduction of rich Mn slag was analysed.As a new process,the vacuum silicothermic reduction was proposed to prepare Mg-Mn alloys.Through thermodynamic analysis of vacuum silicon thermal method for synchronization reduction MgO and MnO,appropriate conditions of redu... |
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| Keywords: | thermic reduction Mg-Mn alloys rich manganese slag MgO MnO |
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