Effect of electric pulse treatment on solidification structure of an A1-15%Si alloy

稀有金属（英文版）, 2005, 24(3): 288-292.

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China;Sinosteel Sci-Tech Development Company, Beijing 100031, China

2.Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China

3.Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China

4.Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China

5.Shijiazhuang Iron and Steel Co. Ltd., Shijiazhuang 050031, China

6.Shijiazhuang Iron and Steel Co. Ltd., Shijiazhuang 050031, China

基金项目: 国家高技术研究发展计划(863计划)(2001AA337040)

Effect of electric pulse treatment on solidification structure of an A1-15%Si alloy

Keywords： solidification structure

The effect of electric pulse modifying on the solidification structure of an Al-15%Si alloy was investigated. The result shows that the primary silicon disappears sometimes and the eutectic phase is refined after the treatment of EP (electric pulse) though there are different modalities in different treating durations. DSC (differential scanning calorimetry)analysis indicates that the super-cooling temperature decreases and the freezing range narrows evidently after the electric pulse treatment.

参考文献

[1]	Asoka K M .A novel solidification technique of metals and alloys: under the influence of applied potential[J].Metallurgical and Materials Transactions,1985,16A:1354.
[2]	Bamak J P;Precher A F S;Conrad H .Colony (grain size) reduction in eutectic Pb-Sn casting by electropulsing[J].Scripta Metallurgica et Materialia,1995,32(06):879.
[3]	Li J M;Li S L;Li J;Lin H T .Modification of solidification structure by pulse electric discharging[J].Scripta Metallurgica et Materialia,1994,31(12):1691.
[4]	Qin R S;Su S X;Guo J D;He G H ,and Zhou B L .Suspension effect of nanocrystalline grain growth under electropulsing[J].Nano-Structured Materials,1998,10(01):71.
[5]	Masayukib N;Yuh S;Merton C F .Modification of solidification structures by pulse electric discharging[J].ISIJ International,1990,30(01):27.
[6]	Yan H C;He G H;Zhou B L;Qin R S ,Gou J D ,and Shen Y F .The influence of pulse electric discharging on solidified structure of Sn-10%Pb alloy[J].Acta Metall Sin,1997,33(04):352.
[7]	訾炳涛,姚可夫,刘文今,崔建忠,巴启先.高密度脉冲电流对2024铝合金凝固组织的影响[J].稀有金属材料与工程,2003(01):9-12.
[8]	Ban C Y;Cui J Z;Ba Q X;Lu G M ,and Zi B T .Solidification structures of LY12 Al-alloy under pulsed current and pulsed magnetic field[J].Chinese Journal of Mater Res,2002,16(03):322.
[9]	Tang Y .The Investigation of the Steel Solidification Improvement under Various Electropulse Conditions[Dissertation][D].北京:北京科技大学,2000.
[10]	Jingsong Wang;Qingguo Xue;Guowei Chang .Effects of electric pulse on microstructure of Al-Si alloy in liquid and solid states[J].Journal of University of Science and Technology Beijing,2004(2):123-126.
[11]	Hu H Q;Wang H F.The Theory of Metal Solidification[M].北京:机械工业出版社,1991:125.

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Effect of electric pulse treatment on solidification structure of an A1-15%Si alloy

参考文献