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Theoretical analysis shows that the migration behavior of a second phase during solidification processes in a high magnetic field (HMF) can be described by the migration velocity, which is a function of properties of melt matrix and the second phase, magnetic intensity and its gradient, as well as the geometry and size of the second phase. Lorentz force tends to make the second phase distribute homogenously, although its efficiency decreases with the increase of magnetic intensity beyond a certain value. When a gradient HMF is imposed, magnetization force becomes the dominant factor for the migration behavior of second phase. The effect of magnetization force increases with magnetic gradient, while it is difficult to control the migration of a second phase due to the constraint of Lorentz force when magnetic gradient is small. The theory has been experimentally verified by controlling the migration of in situ prepared particles in Al-Si and Al-Ni alloys under HMF conditions.
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Keywords:
- high magnetic field /
- migration /
- second phase /
- solidification
[1] ［1］Wang Q, Wang E G, He J C 2003 J. Mater. Sci. Eng. 21 590 (in Chinese) ［王强、王恩刚、赫冀成 2003 材料科学与工程学报 21 590］
[2] ［2］Asai S 2000 Sci. Technol. Adv. Mater. 1 191
[3] ［3］Asai S 2004 Modell. Simul. Mater. Sci. Eng. 12 R1
[4] ［4］Wang C J, Wang Q, Wang Y Q, Huang J, He J C 2006 Acta Phys. Sin. 55 648 (in Chinese) ［王春江、王强、王亚琴、黄剑、赫冀成 2006 55 648］
[5] ［5］Pang X J, Wang Q, Wang C J, Wang Y Q, Li Y B, He J C 2006 Acta Phys. Sin. 55 5129 (in Chinese) ［庞雪君、王强、王春江、王亚琴、李亚斌、赫冀成 2006 55 5129］
[6] ［6］Gao A, Wang Q, Wang C J, Liu T, Zhang C, He J C 2008 Acta Phys. Sin. 57 767(in Chinese)［高翱、王强、王春江、刘铁、张超、赫冀成 2008 57 767］
[7] ［7］Sassa K, Morikawa H, Asai S 1997 J. Jpn. Inst. Met. 61 1283
[8] ［8］Ren Z M, Li X, Wang H, Deng K, Zhuang Y Q 2004 Mater. Lett. 58 3405
[9] ［9］Colli F, Fabbri M, Negrini F, Asai S, Sassa K 2003 COMPEL 22 58
[10] ］Ikezoe Y, Hirota N, Nakagawa J, Kitazawa K 1998 Nature 393 749
[11] ］Yasuda H, Ohnaka I, Kawakami O, Ueno K, Kishio K 2003 ISIJ Int. 43 942
[12] ］Robert C 1982-1983 CRC Handbook of Chemistry and Physics (the 63rd edition) (Florida: CRC Press, Inc.) B-244
[13] ］Colin J, Smithells M S 1976 Metals reference book (5th edition) (London & Boston: Butterworths & Co. Ltd.) 940
[14] ］Wang, C J, Wang, Q, Wang Z Y, Li H T, Nakajima K, He J C 2008 J. Cryst. Growth 310 1256
[15] ］Wang Q, Wang C J, Liu T, Wang K, He J C 2007 J. Mater. Sci. 42 10000
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[1] ［1］Wang Q, Wang E G, He J C 2003 J. Mater. Sci. Eng. 21 590 (in Chinese) ［王强、王恩刚、赫冀成 2003 材料科学与工程学报 21 590］
[2] ［2］Asai S 2000 Sci. Technol. Adv. Mater. 1 191
[3] ［3］Asai S 2004 Modell. Simul. Mater. Sci. Eng. 12 R1
[4] ［4］Wang C J, Wang Q, Wang Y Q, Huang J, He J C 2006 Acta Phys. Sin. 55 648 (in Chinese) ［王春江、王强、王亚琴、黄剑、赫冀成 2006 55 648］
[5] ［5］Pang X J, Wang Q, Wang C J, Wang Y Q, Li Y B, He J C 2006 Acta Phys. Sin. 55 5129 (in Chinese) ［庞雪君、王强、王春江、王亚琴、李亚斌、赫冀成 2006 55 5129］
[6] ［6］Gao A, Wang Q, Wang C J, Liu T, Zhang C, He J C 2008 Acta Phys. Sin. 57 767(in Chinese)［高翱、王强、王春江、刘铁、张超、赫冀成 2008 57 767］
[7] ［7］Sassa K, Morikawa H, Asai S 1997 J. Jpn. Inst. Met. 61 1283
[8] ［8］Ren Z M, Li X, Wang H, Deng K, Zhuang Y Q 2004 Mater. Lett. 58 3405
[9] ［9］Colli F, Fabbri M, Negrini F, Asai S, Sassa K 2003 COMPEL 22 58
[10] ］Ikezoe Y, Hirota N, Nakagawa J, Kitazawa K 1998 Nature 393 749
[11] ］Yasuda H, Ohnaka I, Kawakami O, Ueno K, Kishio K 2003 ISIJ Int. 43 942
[12] ］Robert C 1982-1983 CRC Handbook of Chemistry and Physics (the 63rd edition) (Florida: CRC Press, Inc.) B-244
[13] ］Colin J, Smithells M S 1976 Metals reference book (5th edition) (London & Boston: Butterworths & Co. Ltd.) 940
[14] ］Wang, C J, Wang, Q, Wang Z Y, Li H T, Nakajima K, He J C 2008 J. Cryst. Growth 310 1256
[15] ］Wang Q, Wang C J, Liu T, Wang K, He J C 2007 J. Mater. Sci. 42 10000
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