With the new CALPHAD-type model proposed in our previous work, the viscosity of the Ag–Au–Cu system was re-optimized. Comparisons were made in the calculated viscosities of the Ag–Au and Ag–Cu liquid alloys at 1373 K among different models. It was found that the CALPHAD-type models perform better than the empirical models. The calculated viscosities of the Ag–Au–Cu liquid alloys with and without ternary interaction parameters were both compared with the calculation results of the previous CALPHAD-type model. Considering ternary interaction, the best fitness with the experimental data could be obtained by our model. The good performance in reproducing the measured viscosities of binary and ternary systems evidences the validity of the new model.

通过我们先前的工作中提出的新的CALPHAD型模型，重新优化了Ag-Au-Cu体系的粘度。在不同模型之间，对在1373 K下的Ag–Au和Ag–Cu液态合金的计算粘度进行了比较。发现CALPHAD型模型的性能优于经验模型。将具有和不具有三元相互作用参数的Ag-Au-Cu液态合金的计算粘度都与以前的CALPHAD型模型的计算结果进行了比较。考虑到三元相互作用，可以通过我们的模型获得与实验数据的最佳拟合度。在再现二元和三元系统的测量粘度方面的良好性能证明了新模型的有效性。