脉冲磁场作用下6063铝合金凝固组织研究
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- 英文论文题名：Solidification structure of 6063 aluminum alloy under PMF
- 论文作者：接金川 ; 陈航 ; 张宇博 ; 王同敏 ; 曹志强 ; 李廷举
- 英文论文作者：JIE Jinchuan ; CHEN Hang ; ZHANG Yubo ; WANG Tongmin ; CAO Zhiqiang ; LI Tingju ; School of Materials Science and Engineering ; Dalian University of Technology
- 年：2016
- 作者机构：大连理工大学科学与工程学院;
- 论文关键词：脉冲磁场 ; 凝固组织 ; 连续铸造
- 英文论文关键词：Pulsed Magnetic Field ; Solidification Structure ; Continuous Casting
- 会议召开时间：2016-08-15
- 会议录名称：第三届全国电磁冶金与强磁场材料科学会议学术论文集
- 语种：中文
- 分类号：TG292
- 学会代码：ZGJS
- 会议名称：第三届全国电磁冶金与强磁场材料科学会议
- 会议地点：中国河南焦作
- 主办单位：中国金属学会电磁冶金与强磁场材料科学分会
- 学会名称：中国金属学会
- 页数：4
- 文件大小：1227k
- 原文格式：O
- 会议级别：全国
摘要
本文通过脉冲磁场应用到6063铝合金垂直半连续铸造过程,实验结果表明,在6063铝合金垂直半连续过程中施加脉冲磁场,铝合金的凝固组织得到显著的细化。在未施加脉冲磁场时,凝固组织为粗大的等轴晶;当施加脉冲磁场时,凝固组织为细小的等轴晶,并且随着脉冲电压的增加,凝固组织细化越均匀。当脉冲电压增至700V、频率为10Hz时,平均晶粒尺寸从原始的2000μm减小到200μm。
PMF was realized during the semi-continuous casting of 6063 Al alloy by self-made mould with the exciting coil.The experimental results indicate that when PMF is applied to the semi-continuous casting of 6063 Al alloy,the solidification structure is refined greatly.The solidificaiton structure is coarse equiaxed without PMF.However,the fined equixaed grain structure is achieved when PMF is applied.Meanwhile,the solidification structure is more and more uniform with the increasing voltage of PMF.When the voltage of PMF is increased to 700 V,the average grain size can be decreased from 2000 μm to-200 μm.
PMF was realized during the semi-continuous casting of 6063 Al alloy by self-made mould with the exciting coil.The experimental results indicate that when PMF is applied to the semi-continuous casting of 6063 Al alloy,the solidification structure is refined greatly.The solidificaiton structure is coarse equiaxed without PMF.However,the fined equixaed grain structure is achieved when PMF is applied.Meanwhile,the solidification structure is more and more uniform with the increasing voltage of PMF.When the voltage of PMF is increased to 700 V,the average grain size can be decreased from 2000 μm to-200 μm.
引文
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[2]Fu JW,Yang YS.Mater Lett 2012;67:252.
[3]Li YJ,M i XP,Yang YS.Trans Nonferrous Met Soc China 2010;21:1277.
[4]Wang B,Yang YS,Ma XP,Tong WH.Trans Nonferrous Met Soc China 2009;20:283.
[5]Ma XP,Yang YS,Wang B.Int J Heat Mass Tran 2009;52:5285.
[6]Wang B,Yang YS,Zhou JX,Tong WH.Trans Nonferrous Met Soc China 2007;18:536.
[7]Rabiger D,Zhang Y,Galindo V,Franke S,Willers B,Eckert S.Acta Mater 2014;79:327.
[8]Liotti E,Lui A,Vincent R,Kumar S,Guo Z,Connolley T,Dolbnya IP.Acta Mater 2014;70:228.
[9]Liao XL,Zhai QJ,Luo J,Chen WJ,Gong YY Acta Mater 2007;55:3103.
[10]Li M,Tamura T,Miwa K.Acta Mater 2007;55:4635.