Abstract

Based on our earlier hypothesis of weak nonlocality, we developed a method for calculating the temperature dependences of the width and specific energy of the interphase boundary for binary substitutional alloys, using the concentration dependence of the internal energy or the equilibrium phase diagram of the alloy. Numerically calculated temperature dependences of the solubility limits, specific energy, and thickness of the interphase boundary are presented for three thermodynamic models: the regular solution model (Nb–Cu alloy), the quasi-regular solution model, and the general case (Fe–Cu alloy and A–B alloy that differs from Fe–Cu in the sign of excess entropy).

中文翻译：

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基于弱非局部性假设确定异相二元合金的相界边界参数

摘要

基于我们较早的非局域性弱假设，我们开发了一种方法，该方法利用内部能量的浓度依赖性或合金的平衡相图来计算二元置换合金的宽度和界面相边界的比能的温度依赖性。对于三种热力学模型，提出了数值计算的温度依赖性，溶解度极限，比能和相间边界厚度的温度依赖性：常规溶液模型（Nb-Cu合金），准常规溶液模型和一般情况（Fe-铜合金和A–B合金与Fe–Cu的区别在于过量的熵）。