Effect of electromagnetic vibration on the structure in solidified Al-4.5％Cu alloy under a strong magnetic field

Acta Metall Sin

2008, Vol. 44

Issue (2): 172-176 DOI:

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Effect of electromagnetic vibration on the structure in solidified Al-4.5％Cu alloy under a strong magnetic field

YU Jian-Bo

上海大学

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YU Jian-Bo. Effect of electromagnetic vibration on the structure in solidified Al-4.5％Cu alloy under a strong magnetic field. Acta Metall Sin, 2008, 44(2): 172-176 .

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Abstract The effects of electromagnetic vibration with a strong magnetic field on the solidified structure of hypoeutectic Al-4.5%Cu alloy were experimentally studied. It was found that the morphology of was transferred from coarse dendrite to refined spheroid. At a constant magnetic flux density, the size of grains was decreased significantly with the increasing of current density. While at a constant current density, the refinement was increased firstly with the increasing of magnetic flux density and then diminished appreciably. X-ray diffraction indicated that the refining grains were oriented with <111> towards the magnetic field direction. The orientation degree was increased with the decreasing of grain size. The relation between orientation and grain size was analyzed from crystal orientation and migration theory.

Key words: High magnetic field Electromagnetic vibration alternative current Orientation Al alloy refine

Received: 07 June 2007

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2008/V44/I2/172

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