Acta Metall Sin  2007, Vol. 43 Issue (11): 1201-1206     DOI:

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Effects of Gradient Magnetic Field on the Solidification Structure of Aluminum Under Electromagnetic Vibration

YU Jianbo; REN Zhongming; REN Weili; LI Xi; WANG Jun; DENG Kang

Department of Materials Science and Engineering; Shanghai University

YU Jianbo; REN Zhongming; REN Weili; LI Xi; WANG Jun; DENG Kang. Effects of Gradient Magnetic Field on the Solidification Structure of Aluminum Under Electromagnetic Vibration. Acta Metall Sin, 2007, 43(11): 1201-1206 .

Abstract References Related Articles Recommended Metrics Download:  PDF(1302KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The effect of gradient high magnetic field on refined structures distribution has been investigated experimentally during electromagnetic vibration of Al. It was found the refining region was influenced by the magnetization force and gravity. A model responsible for the magnetization force—restrain migratation of crystal grains has been proposed based on the classical dynamics, in which the grain is treated as a spheroid. A theoretical expression was derived for the migratation of grain as a function of applied magnetic intensity and gradient. We can achieve micro-gravitational solidification and restrain “crystal shower” under gradient high magnetic field. Key words:  gradient high magnetic field      alternative current      magnetic levitation      grain refinement      crystal shower      Received:  06 March 2007      ZTFLH:  TG146   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors YU Jianbo REN Zhongming REN Weili LI Xi WANG Jun DENG Kang URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2007/V43/I11/1201 [1]Vives C.Mater Sci Eng,1993;A173:169 [2]Vives C.Metall Mater Trans,1996;27B:1445 [3]Vives C.J Cryst Growth,1996;158:118 [4]Radjai A,Miwa K,Nishio K.Metall Mater Trans,1998; 29A:1477 [5]Radja1i A,Miwa K,Nishio K.Metall Mater Trans,2002; 33A:3025 [6]Takagi T,Iwai K,Asai S.ISIJ Int,2003;43:842 [7]Sugiura K,Iwai K.ISIJ Int,2004;44:1410 [8]Sugiura K,Iwai K.ISIJ Int,2005;45:962 [9]Wang Q,kawai S,Iwai K.CAMP-ISIJ,2000;13(1):150 [10]Wang Q,He J C,Kawai S,Iwai K,Asai S.Acta Metal Sin,2002;38:961 (王强，赫冀成，川合悟，岩井一彦，浅井滋生．金属学报，2002；38：961) [11]Zhang Q,Cui J Z,Lu G M.Foundry,2003;52:171 (张勤，崔建忠，路贵民．铸造，2003；52：171) [12]Zhang Q,Cui J Z,Lu G M,Ban C Y.Chin Nonferrous Met,2003;13:1184 (张勤，崔建忠，路贵民，班春燕．中国有色金属学报，2003；13：1184) [13]Zhang Q,Cui J Z.Chin Nonferrous Met,2003;13:1500 (张勤，崔建忠．中国有色金属学报，2003；13：1500) [14]Wang H L,Ren Z M,Ren W L,Wang J,Deng K,Zhong Y B.Shanghai Met,2006;28(5):40 (王洪亮，任忠鸣，任维丽，王俊，邓康，钟云波．上海金属，2006；28(5)：40) [15]Wang J,Deng K,Ren Z M,Ren W L,Li X,Zhong Y B, Xu K D.Shanghai Met,2006;28(6):7 (王俊，邓康，任忠鸣，任维丽，李喜，钟云波，徐匡迪．上海金属，2006；28(6)：7) [16]Zhang Y J.Handbook of Fluid Dyramics.Beijing:Bei- hang University Press,1991:434 (张远君．流体力学大全．北京：北京航空航天大学出版社，1991：434) [17]Ran X T.Research of Al-Si Alloy Solidification in a Gra- dient High Magnetic Field.Shanghai:Shanghai Univer- sity Press,2004:47 (冉新天．梯度强磁场下Al-Si合金凝固的研究．上海：上海大学出版社2004：47) [1] LI Xiaobing, QIAN Kun, SHU Lei, ZHANG Mengshu, ZHANG Jinhu, CHEN Bo, LIU Kui. 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