| 二元系熔体中组元活度的计算式 |
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| 引用本文： | 丁学勇,王文忠. 二元系熔体中组元活度的计算式[J]. 金属学报, 1994, 30(22): 444-447 |
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| 作者姓名： | 丁学勇 王文忠 |
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| 作者单位： | 东北大学 |
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| 摘 要： | 由Ｍｉｅｄｅｍａ二元合金生成热模型得到计算任意二元系中组元活度的新公式，该公式适用于任何液态和固态溶液，通过对大量的实验结果进行对比表明，用该方法计算的结果和实验值吻合较好．
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| 关 键 词： | 二元系，活度，热力学计算 |
A NEW THERMODYNAMIC CALCULATION FORMULA FOR ACTIVITY OF COMPONENT IN BINARY SYSTEM |
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| DING Xueyong,WANG Wenzhong. A NEW THERMODYNAMIC CALCULATION FORMULA FOR ACTIVITY OF COMPONENT IN BINARY SYSTEM[J]. Acta Metallurgica Sinica, 1994, 30(22): 444-447 |
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| Authors: | DING Xueyong WANG Wenzhong |
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| Affiliation: | DING Xueyong,WANG Wenzhong(Northeastern University,Shenyang) |
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| Abstract: | A new formula for calculating the activities of the components in any binary system has been proposed based on Miedema's model for calculating the formation heat of binary alloys.The formula can be used in both solid and liquid solutions. This method has been used to calculate the activities in the binary system taken from 75 elements. The results show that this method is feasible and agrees very well with the experimental data for most systems. The ratio of the same sign of either the positive deviation or the negative deviation to solution reaches 87.5 %. |
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| Keywords: | binary system activity thermodynamic calculation |
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