Investigating the Impact of Grain Boundary Width on Average Grain Size in Nanoscale Polycrystalline Microstructures: A Multi-Phase Field and Finite Element Simulation Approach

Phase field technique is an extremely versatile method capable to simulate intricate changes related to quenching of polycrystalline microstructures and the scope of its application has expanded to encompass a broad spectrum such as laser-based additive manufacturing, solidification, fracture, and more. In this study, we investigate the influence of gradient energy coefficients (k = 0.01 and k = 0.1) on the average grain size of a nanoscale polycrystalline microstructure using the multi-phase field method and finite-element technique for simulation.