INFLUENCE OF ROTATING MAGNETIC FIELD DRIVEN FORCED CONVECTION ON THE MICROSTRUCTURES OF SN-BI ALLOYS

Acta Metall Sin

2008, Vol. 44

Issue (5): 609-614 DOI:

Research Articles

Current Issue | Archive | Adv Search

INFLUENCE OF ROTATING MAGNETIC FIELD DRIVEN FORCED CONVECTION ON THE MICROSTRUCTURES OF SN-BI ALLOYS

changle chen;xiaoli wen;ZHU Jian-Hua;

西北工业大学理学院

Cite this article:

changle chen; xiaoli wen; ZHU Jian-Hua. INFLUENCE OF ROTATING MAGNETIC FIELD DRIVEN FORCED CONVECTION ON THE MICROSTRUCTURES OF SN-BI ALLOYS. Acta Metall Sin, 2008, 44(5): 609-614 .

Download:

PDF(4386KB)
Export: BibTeX | EndNote (RIS)

Abstract In this paper we analyze the influence of rotating magnetic field driven forced convection on solidification microstructure, through investigating the solidification of Sn-Bi alloys in rotating magnetic field (RMF). We found that the RMF can eliminate macrosegregation，cause the fracture of dendrites and refinement of solidification structure, accelerate the velocity of melt and the diffuse of solute near the solid-liquid interface, decrease eutectic spacing, and cause the regional difference of eutectic microstructure. At the same time, there is a transition from dendrite-eqiaxed-orbed-dendrite growth with increasing the rotating frequency. The basic reasons of dendrite fracture and growth form transition and the eutectic spacing change consist in the enhancement of the melt velocity, the homogenization of temperature and solute fields, the relative motion between the primary phase and the melt caused by the electric conductivities difference. The reason of macrosegregation elimination is that the primary phase is affected by the combined effect of gravity, buoyancy and Lorentz force. Furthermore, the physical mechanism on the transition of solidification microstructure by rotating magnetic field is discussed.

Key words:

Received: 26 September 2007

ZTFLH:	O0361
	O369
	O441

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	changle chen
	xiaoli wen
	ZHU Jian-Hua

URL:

https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2008/V44/I5/609

[1]Zimmermann G,Weiss A,Mbaya Z.Mater Sci Eng,2005; A413-414:236
[2]Flemings M C.Metall Trans,1991;22B:269
[3]Riahi D N.J Cryst Growth,2000;216:501
[4]Holmes A M,Wang X,Ma N,Bliss D F,Iseler G W.Int J Heat Fluid Flow,2005;26:792
[5]Fan Z,Liu G,Hitchcock M.Mater Sci Eng,2005;A413- 414:229
[6]Ganapathysubramanian B,Zabaras N.J Cryst Growth, 2004;270:255
[7]Nikrityuk P A,Eckert K,Grundmann R.Int J Heat Fluid Flow,2006;49:1501
[8]Li X,Ren Z M,Wang H.Acta Metall Sin,2004;40:40 (李喜，任忠鸣，王晖．金属学报，2004；40：40)
[9]Langenberg F C,Pestel G,Honeycutt C R.TMS-AIME, 1961;221:993
[10]Johnston W C,Kotler G R,Tiller W A.TMS-AIME, 1963;227:890
[11]Johnston W C,Kotler G R,Tiller W A.TMS-AIME, 1965;233:1856
[12]Uhlmann D R,Seward T P,Chalmers B.TMS-AIME, 1966;236:527
[13]Vives C.J Cryst Growth,1986;76:170
[14]Dong J,Cui J Z,Ding W J.J Cryst Growth,2006;295: 179
[15]Willers B,Eckert S,Michel U,Haase I,Zouhar G.Mater Sci Eng,2005;A402:55
[16]Hu H Q.Solidification Principle of Metal.Beijing:China Machine Press,2000:185 (胡汉起．金属凝固原理．北京：机械工业出版社，2000：185)

[1]	WANG Luning, LIU Lijun, YAN Yu, YANG Kun, LU Lili. *Influences of Protein Adsorption on the in vitro* Corrosion of Biomedical Metals**[J]. 金属学报, 2021, 57(1): 1-15.
[2]	TUNG Feng'en;WANG Yuming Institute of Materials Science; Jilin University; Changchun. X-RAY ANALYSIS OF WORK-HARDENING PROCESS FOR POLYCRYSTALLINE а-BRASS DURING UNIAXIAL TENSILE TEST[J]. 金属学报, 1989, 25(2): 82-84.
[3]	WANG Jinliang, WANG Chenchong, HUANG Minghao, HU Jun, XU Wei. The Effects and Mechanisms of Pre-Deformation with Low Strain on Temperature-Induced Martensitic Transformation[J]. 金属学报, 2021, 57(5): 575-585.
[4]	DU Hegui;LIU Xin Northeast University of Technology; Shenyang. KINETICS OF CARBON COMBUSTION IN PLASMA AIR[J]. 金属学报, 1989, 25(2): 85-88.
[5]	. [J]. 金属学报, 2001, 37(1): 42-46 .
[6]	. [J]. 金属学报, 1999, 35(3): 320-324 .
[7]	. [J]. 金属学报, 2000, 36(1): 72-76 .
[8]	. [J]. 金属学报, 1999, 35(3): 330-333 .
[9]	. [J]. 金属学报, 1999, 35(3): 334-336 .
[10]	. [J]. 金属学报, 2000, 36(6): 647-650 .
[11]	. [J]. 金属学报, 2000, 36(6): 655-658 .
[12]	No Author. ACTA METALLURGLCA SLNLCA Volume 28 Series A 1992 SUBJECT INDEX[J]. 金属学报, 1992, 28(12): 63-90.
[13]	. [J]. 金属学报, 2000, 36(7): 780-784 .
[14]	No Author. ACTA METALLURGICA SINICA(JINSHU XUEBAO) Volume 28 1992 AUTHOR INDEX[J]. 金属学报, 1992, 28(12): 71-94.
[15]	Хань Яо-вэнь Инсмцмум мемаддов АН КНР;Г.н.Ойкс Московскц цнсмцмум смадц. НЗУЧЕНИЕ ПРОЦЕССОВ ДЕСУЛЬФУРАЦИИ ХНДКОΓО МЕТАЛЛА В ВАКУУМЕ[J]. 金属学报, 1963, 6(2): 98-110.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed