以M-S理论为基础,导出了在定向凝固过程中电流通过固液界面的情况下,电流密度与柱状晶间距的理论关系式,并对其进行了实验研究.结果表明,电流密度增加时,其柱状晶间距近似呈直线下降的趋势,理论计算与实验结果基本吻合.
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