Microstructure Formation in a Continuously Solidified Al-Pb Alloy in a Static Magnetic Field

doi:10.11901/1005.3093.2013.719

Chinese Journal of Materials Research

2014, Vol. 28

Issue (4): 269-273 DOI: 10.11901/1005.3093.2013.719

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Microstructure Formation in a Continuously Solidified Al-Pb Alloy in a Static Magnetic Field

Haili LI¹,Jiuzhou ZHAO^2,^**(

)

1. China Department of Material Engineering Invention Examination, Patent Examination Cooperation Center of the Patent Office, SIPO, Beijing 102208
2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

Cite this article:

Haili LI,Jiuzhou ZHAO. Microstructure Formation in a Continuously Solidified Al-Pb Alloy in a Static Magnetic Field. Chinese Journal of Materials Research, 2014, 28(4): 269-273.

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Abstract

Monotectic Al-Pb alloy melts were continuously solidified in a static magnetic field. Samples with well dispersed microstructure were obtained. The average size of the Pb-rich particles decreases with the increase of the magnetic field intensity. Theoretical analyses demonstrate that a static magnetic field causes an increase of the effective viscosity of the melts, and a decrease of the moving velocity of droplets of the precipitated phase and the convective flow of the matrix melt, therefore promotes the formation of the well dispersed solidification microstructure.

Key words: metallic materials Al-Pb alloy solidification magnetic field effect

Received: 29 September 2013

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https://www.cjmr.org/EN/10.11901/1005.3093.2013.719 OR https://www.cjmr.org/EN/Y2014/V28/I4/269

Fig.1 Schematic of the directional solidification setup

Fig.2 Microstructures of the Al-5%Pb alloys solidified at the rate of 5 mm/s in static magnetic fields of different strengths. (a) 0 T, (b) 0.3 T, (c) 0.6 T

Fig.3 Average radius of Pb- rich particles formed during the liquid- liquid decomposition in Al- 5%Pb alloy solidified at the rate of 5 mm/s versus the magnetic field strengths

Fig.4 Temperature profile in front of the solidification interface for the sample solidified at the rate of 5 mm/s

Fig.5 Variation of Stokes and Marangoni velocities of the minority phase droplets in front of the solidification interface with the diameter of the minority phase droplets

Fig.6 Schematic illustration of the flow pattern, eddy current and Lorentz force when a droplet moves in the alloy melt

Fig.7 Relationship between the Hartman number of the minority phase droplets and effective viscosity of the melt and the diameter of the minority phase droplets in the magnetic field of 0.3 T. Ha^m and Ha^d are the Hartman number of the melt and the minority phase droplets, respectively. η 0 m and η 0 β are the viscosity of the melt and minority phase droplets in the magnetic field of 0 T, respectively

Fig.8 Relationship between the velocities of the minority phase droplets in front of the solidification interface and the diameter of the minority phase droplets in static magnetic fields. u S B and u S0 are the Stokes velocity of the minority phase droplets in the magnetic field of 0 and 0.3 T, respectively. u M B and u M0 are the Marangoni velocity of the minority phase droplets in the magnetic field of 0 and 0.3 T, respectively

Fig.9 Relationship curve between the velocities of the minority phase droplets in front of the solidification interface and the diameter of the samples in static magnetic fields of 0.3 T

1	A. Inoue, N. Yano,Microstructure and superconducting properties of melt quenched insoluble Al-Pb and Al-Pb-Bi alloys, J. Mater. Sci., 22(1), 123(1987)
2	J. Wecker, R. Hehnolt, L. Schulta, K. Samwer,Giant magnetoresistanee in melt spun Cu-Co alloys, Appl. Phys. Lett., 52, 1985(1993)
3	LIU Yuan,GUO Jingjie, JIA Jun,The mechanism of the liquid-liquid phase segregation for monotectic alloy and the preparation methods of homogeneous monotectic Alloy, Foundry, 49(1), 11(2000)
3	(刘源, 郭景杰, 贾均, 偏晶合金液-液相分离机制和均质偏晶合金的制备方法, 铸造, 49(1), 11(2000))
4	C. D. Cao, B. B. Wei,Microstructure evolution of Cu-Pb monotectic alloys processed in drop tube, J. Mater. Sci. Technol., 18(1), 73(2002)
5	ZHANG Lin,WANG Engang, ZUO Xiaowei, HAO Jicheng, Effect of high magnetic field on solidified structure of Cu-80%Pb hypermonotectic alloy, Acta Metallurgica Sinica, 44(2), 165(2008)
5	(张林, 王恩刚, 左小伟, 赫冀成,强磁场对Cu-80%Pb过偏晶合金凝固组织的影响, 金属学报, 44(2), 165(2008))
6	H. Yasuda, I. Ohnaka, S. Fujimoto,Fabrication of aligned pores in aluminum by electrochemical dissolution of monotectic alloys solidified under a magnetic field, Scr. Mater., 54(5), 527(2006)
7	H. Yasuda, I. Ohnaka, O. Kawakami,Effect of magnetic field on solidification in Cu-Pb monotectic alloys, ISIJ Int., 43(6), 942(2003)
8	H. L. Li, J. Z. Zhao, Q. X. Zhang,Microstructure formation in a directionally solidified immiscible alloy, Metall. Mater. Trans. A, 39(13), 3308(2008)
9	W. Chester,The effect of a magnetic field on Stokes flow, Scr. Mater., 52(1), 79(2005)
10	J. L. Decarlo, R. G. Pirich,Effect of applied magnetic-fields during directional solidification of eutectic Bi-Mn, Metall. Trans. A, 15A(12), 2155(1984)
11	W. Chester,The effect of a magnetic field on Stokes flow in a conducting fluid, J. Fluid. Mech., 3, 304(1957)

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