The thermophysical properties of Ni–Al. Ni–Ti, and Al–Ti alloys, i.e., viscosity and surface tension, have been investigated using the evaluated thermodynamic properties, i.e., enthalpy of mixing ΔHmix\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \Delta H_{\text{mix}} $$\end{document}, Gibbs free energy of mixing ΔGmix\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \Delta G_{\text{mix}} $$\end{document}, and excess Gibbs free energy ΔGE\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \Delta G_{{}}^{\text{E}} $$\end{document}, by the atom and molecular coexistence theory. Then, the third-degree Redlich–Kister (R–K) parameters for viscosity, surface tension, and excess Gibbs free energy at 1973 K were obtained. Based on this, the isothermal viscosity of Ni–Al–Ti ternary melts was simultaneously determined form the excess viscosity of the above-mentioned three binary systems by CALPHAD model and the similarity coefficients by Chou’s model, and the surface tension of the liquid ternary Ni–Al–Ti alloy systems was investigated with considering the excess surface tension of the three binary systems by Chou’s model as well as the excess Gibbs free energy of Ni–Al–Ti melts by Butler’s model for the multicomponent system at 1973 K. The results showed that the viscosity and surface tension of liquid Ni–Al–Ti alloy increase with the increase in Ti content at a fixed Al/Ni ratio, whereas decreases with increasing Al/Ni ratio at a given alloy composition at 1973 K.

中文翻译：

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使用 AMCT 评估的热力学性质测定液态 Ni-Al-Ti 体系的粘度和表面张力

Ni-Al 的热物理性质。Ni-Ti 和 Al-Ti 合金，即粘度和表面张力，已经使用评估的热力学性质进行了研究，即混合焓 ΔHmix\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \Delta H_{\text{mix }} $$\end{document}, Gibbs 混合自由能 ΔGmix\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \ usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \Delta G_{\text{mix}} $$\end{document}, 和多余的吉布斯自由能 ΔGE\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \ setlength{\oddsidemargin}{-69pt} \begin{document}$$ \Delta G_{{}}^{\text{E}} $$\end{document}，由原子和分子共存理论。然后，获得了 1973 K 时粘度、表面张力和过量吉布斯自由能的三次 Redlich-Kister (R-K) 参数。在此基础上，利用CALPHAD模型由上述三种二元体系的过剩粘度和Chou模型的相似系数同时确定了Ni-Al-Ti三元熔体的等温粘度，