Effects of High Magnetic Field on Solidification and Corrosion Behaviors of Magnesium Alloy

Abstract

Abstract: The solidification behaviors of AZ61 magnesium alloy under a high magnetic field were studied. The corrosion property of AZ61 alloy was investigated in a solution of 3.5 mol/L NaCl by measuring electrochemical polarization. The results show that the high magnetic field can refine microstructure and benefit aluminum transfer. The crystal of α-Mg is induced to orient with their c-axis parallel to the magnetic field. The corrosion studies indicate that different crystal plane of magnesium has different corrosion property. The passivating films on the a- and b-planes have higher corrosion resistance than that on the c-plane. Aligned structure affects the corrosion property of AZ61 magnesium alloy.

Key words: Magnesium alloy, High magnetic field, Microstructure, Corrosion

Canfeng FANG, Xingguo ZHANG, Hai HAO, Shouhua JI, Junze JIN. Effects of High Magnetic Field on Solidification and Corrosion Behaviors of Magnesium Alloy[J]. J Mater Sci Technol, 2007, 23(06): 806-810.

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