The phase equilibria of the Cr–Sn–Zn ternary system have been systematically investigated via thermodynamic modeling and experimental analysis. The isothermal sections of the Cr–Sn–Zn system at 250 and 450 °C were characterized using scanning electron microscopy coupled with energy-dispersive spectroscopy and X-ray diffraction, the results of these two isothermal sections have confirmed the existence of the ternary compound T which is stable at 250 °C and dissolved at 450 °C. The primary solidification phases were also identified, and only two different primary solidification phases were found. The phase transformations were experimentally determined by using DSC method. On the basis of the present experimental results and available literature data, we carried out the thermodynamic calculations for this system using the CALPHAD technique. A set of self-consistent thermodynamic parameters for the Cr–Sn–Zn ternary system were obtained with good agreement between the experimental and calculated results, proving the validity of the present thermodynamic description.

Cr-Sn-Zn三元体系的相平衡已通过热力学建模和实验分析得到了系统地研究。Cr-Sn-Zn体系在250和450°C下的等温截面通过扫描电子显微镜，能量色散谱和X射线衍射进行了表征，这两个等温截面的结果证实了三元化合物的存在。 T在250°C稳定并在450°C溶解。还确定了初步凝固阶段，并且仅发现了两个不同的初步凝固阶段。通过使用DSC方法实验确定了相变。根据目前的实验结果和可用的文献数据，我们使用CALPHAD技术对该系统进行了热力学计算。