Electromagnetic Stirring Processing and its Influence on Mechanical Properties of ZL102(or Al-Si) Alloy

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Al-Si alloy was melted by using vacuum induction melting furnace heated with medium-frequency induction and stirred simultaneously under Lorentz force. The experimental results were discussed with respect to the theoretical analysis of the Lorentz force on the molten alloy. It was found that Si phase tends to homogenize and aggregate along the direction of axis in the alloy under the effect of Lorentz force. With increasing stirring duration, Rod-shaped Si phase has a tendency to break and passivate on the edge. Vickers hardness measurement indicated that the microhardness of Al-Si alloy was improved after electromagnetic stirring. This result can be mainly attributed to the improvement in spheroidization of Si phase and aluminum phase.

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Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

337-340

Citation:

X. F. Zhang et al., "Electromagnetic Stirring Processing and its Influence on Mechanical Properties of ZL102(or Al-Si) Alloy", Materials Science Forum, Vols. 561-565, pp. 337-340, 2007

Online since:

October 2007

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$38.00

[1] Lian Feng, Qi Feng, LI Ting-ju, HU Guo-bing., Effects of high magnetic f ield on modif ication of Al-Si alloy, Trans. Nonferrous Met. Soc. China., 2005, 15(5): 1089.

[2] W.D. Griffiths, D.G. McCartney., the effect of electromagnetic stirring during solidfication on the structure of Al-Si alloys, Mater. Sci. Eng. A., 1996, 216: 47.

[3] F.C. Robles Hern´andez , J.H. Sokolowski., Comparison among chemical and electromagnetic stirring and vibration melt treatments for Al-Si hypereutectic alloys, J Alloy Compo., 2006, 436: 205.

DOI: https://doi.org/10.1016/j.jallcom.2006.09.039

[4] B.I. Jung, C.H. Jung, T.K. Han, Y.H. Kim., Electromagnetic stirring and Sr modification in A356 alloy, J Mater Process Tech., 2001, 111: 69.

DOI: https://doi.org/10.1016/s0924-0136(01)00514-3

[5] YUN Yuehou, LI Guo-dong, TAI Xian-kang, LIAN G Ya-qiong., The calculation and analyzat ion about electromagnetic forces acting on floating melted zone of neodymium bar, Acta Scientiarum Naturalium Universitatis NeiMongol., 2001, 32(5): 513.

[6] SHI Xiangdong1, WANG Jingsong, XUE Qingguo, CANG Daqiang, WANG Liping, WU Shupiao., Effect of electric pulse treatment on solidification structure of an Al-15%Si alloy, RARE METALS., 2005, 24(3): 288.

[7] Weimin MAO, Yuelong BAI, Guoxing TANG., Preparation for semi-solid aluminum alloy slurry under weak electromagnetic strring conditions, J. Mater. Sci. Technol., 2006, 22(4): 447.