基于Miedema模型混合焓模型外推出4种不同成分的Mg-Zn-Y合金的部分热力学性能,利用实验获得相应成分的合金,并利用XRD及EDS进行物相分析及成分分析。结果表明,合金中各相的形成过程与理论计算结果一致,Zn与Y的生成焓最大,发生反应生成中间相的可能性最大。 Based on the mixed enthalpy model of Miedema model, the partial thermodynamic properties of Mg-Zn-Y alloys with four different compositions were extrapolated. The alloys with corresponding compositions were obtained by experiments and the phase and composition analysis were carried out by XRD and EDS. The results show that the formation process of each phase in the alloy is consistent with the theoretical calculation. The enthalpies of formation of Zn and Y are the largest, and the reaction is most likely to generate mesophase.