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引言 Rasberry-Heinrich方程是近年来常用的数学模型之一,其优点是将激发效应作独立项处理,在Fe-Cr-Ni三元体系等试样中取得了良好的结果。当然,它像其它经验系数法的数学模型一样,也存在一定的局限性,许多作者对此曾进行了研究,其中Riveros等指出:即使在元素激发效应占优势的情况下,它们间的吸收效应也不能作零处理。因元素间的吸收效应始终存在。他还就二元体系中吸收系数A和增强系数B分五种情况进行了探讨。R-H方程表达式为:
Introduction The Rasberry-Heinrich equation is one of the commonly used mathematical models in recent years. The advantage of the Rasberry-Heinrich equation is that the excitation effect is treated independently. Good results have been obtained in the Fe-Cr-Ni ternary system and other samples. Of course, it has some limitations as the mathematical model of other empirical coefficient methods. Many authors have studied this. Among them, Riveros et al. Show that even if the elemental excitation effect is dominant, the absorption effect between them Can not be zero treatment. Because of the absorption effect between elements always exists. He also discussed two cases of absorption coefficient A and enhancement coefficient B in binary system. R-H equation for the expression: