Quantitative high driving force phase-field model for multi-grain structures

This paper presents a novel multi-order parameter phase-field model for simulating high driving force phenomena, such as those encountered in electrochemical cells or additive manufacturing processes. The model decouples the interfacial stability and mean curvature flow and is validated using four benchmarks and three different multi-order parameter interpolation functions. Additionally, the model can reduce the number of grid points required for classical models to simulate phenomena such as phase transformations and grain growth without loss of accuracy, significantly reducing computational time. The proposed model improvement allows the phase-field models to be used in a much more comprehensive range of driving forces and length scales, reducing the gap between experiments and simulations.