二元合金热力学模型—Miedema模型

来源期刊：上海金属2011年第4期

论文作者：吴春峰 李慧改 郑少波 杨存波

文章页码：1 - 5

关键词：二元合金； Miedema模型； 电负性； 电子密度

Key words：Binary Alloy； Miedema Model； Electro Negativity； Electron Density

摘    要：由于只需几个物性参数和设定常数,Miedema模型就能简单地计算二元合金液相或者固相的热力学数据,而且计算值与实验值吻合度较高,因而被广泛应用于二元合金热力学的计算。在介绍了该理论的物理模型的基础上详细阐述了Miedema半经验公式的推导以及物性参数和常数的确定,并对此模型的应用和误差做了客观的分析和总结。

Abstract: Miedema model was widely applied in the thermodynamic calculation of the binary alloys,because the thermodynamic data of the binary alloys in liquid or solid phase could be calculated easily by Miedema model when a few physical parameters and constants were existed,and the calculated results were in good agreement with date from the experiments.The theoretical basis of physical model was introduced,the derivation of the empirical equation and some physical parameters and constants were described in detail,and also the applications and the errors of the model were analyzed and summarized objectively.