The utilization of mathematical modeling and simulation has become essential in the advancement of die casting alloys. The current study centers on the utilization of thermodynamic numerical analysis to predict the phase evolution of die casting alloys based on aluminum. The analysis enables the examination of crucial matters, including the regulation of morphology and the enhancement of the solidification range in the alloy design. The analysis can also be employed to depict the maximum solubility of the constituents in the alloy system. The modeling process utilizes advanced simulation software, specifically Computherm Pandat software. The suggested model is designed to forecast the solidification trajectory of the die casting alloy. The simulation principally relies on the solidification profiles, while tracing it on the aluminum alloys quaternary phase diagram. The findings from the simulations of solidification conducted on aluminum-based alloys are given and contrasted with existing experimental data. Considering the overall progress, it seems that the suggested method is a feasible foundation for creating a powerful computational tool for simulating the solidification process of die casting aluminum alloy.