Effects of electromagnetic vibration on the structure and mechanical properties of Al-6%Si alloy during directional solidification

doi:10.1016/S1006-7191(08)60068-X

Abstract

Abstract:

The effects of electromagnetic vibration on the grain refinement in directional solidification were investigated. It was found that the electromagnetic vibration applied in the melt not only can refine grains remarkably but also can enhance both tensile strength and ductility values of Al-6%Si alloy. SEM graphs show that coarse dendrite structure was broken up into a somewhat globular structure, and the morphology of eutectic silicon was changed from flaky to fibrous under electromagnetic vibration treatment. The refine mechanism under electromagnetic vibration was discussed.

Key words: Electromagnetic vibration, Grain refinement, Directional solidification, Mechanical property

Jianbo YU,Zhongming REN,Weili REN,Kang DENG,Yunbo ZHONG. Effects of electromagnetic vibration on the structure and mechanical properties of Al-6%Si alloy during directional solidification[J]. Acta Metallurgica Sinica (English Letters), 2009, 22(1): 35-39.

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Effects of electromagnetic vibration on the structure and mechanical properties of Al-6%Si alloy during directional solidification

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