研究了电磁场作用下Al-Mg扩散偶的界面结构组成和界面中间相的成长规律. 结果表明, 电磁场作用下Al-Mg 扩散偶界面中间相(γ相和β相)的厚度增加, 并且界面中间层的厚度随电磁场强度和频率的增加而增加. 电磁场作用下界面中间相的成长符合抛物线长大规律. 计算了非电磁场与电磁场作用下Al-Mg 扩散偶界面中间相(γ相和β相)的成长常数和激活能, 电磁场增加了扩散偶界面中间相的成长常数, 提高了原子扩散过程中原子的跃迁频率及激活熵, 提高了扩散过程中原子的自由度, 加快了原子的扩散过程, 从而加速了中间相的长大速度, 使中间相的厚度增加.
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