Effect of Magnetic Suspension Force in Electromagnetic Stirring on Microstructure of Al-Si Alloy
来源期刊：稀有金属材料与工程2009年增刊第3期
论文作者：Chen Shiming Liu Yongzhuang Zhang Hongxia Zhang Xuefeng Du Yongsheng
关键词：Al-Si alloy; electromagnetic stirring; Lorentz force; magnetic suspension force;
摘 要：Based on Maxwell equations, the Lorentz force in Al-Si alloy melt was calculated during the process of electromagnetic stirring using analytic approximation method. The effects of magnetic suspension force on the microstructure of Al-Si alloy were given under different electromagnetic stirring frequency. The surface layer for alloy melt (thickness is about skin depth) were under a larger magnetic suspension force in intermediate frequency electromagnetic stirring. As a result, it was found that Si phase tend to homogenize and aggregate along the direction of axis in the alloy.
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摘要:Based on Maxwell equations, the Lorentz force in Al-Si alloy melt was calculated during the process of electromagnetic stirring using analytic approximation method. The effects of magnetic suspension force on the microstructure of Al-Si alloy were given under different electromagnetic stirring frequency. The surface layer for alloy melt (thickness is about skin depth) were under a larger magnetic suspension force in intermediate frequency electromagnetic stirring. As a result, it was found that Si phase tend to homogenize and aggregate along the direction of axis in the alloy.
关键词:Al-Si alloy; electromagnetic stirring; Lorentz force; magnetic suspension force;
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