EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021

Phase-field method has been widely used as the most accurate dendrite growth model. One of the most serious issues in phase-field dendrite growth simulations is a luck of material properties. In particular, interfacial properties, such as the solid-liquid interfacial energy and mobility and those anisotropy, are very important to express the dendrite morphology. However, there is no conclusive prediction method of the interfacial properties. In our previous study, we have developed the phase-field data-assimilation of interfacial properties using results of solidification simulation by molecular dynamics (MD) [M. Ohno et al., Phys. Rev. E, 101 (2020) 052121.]. In the study, the solid-liquid interfacial energy and mobility and those anisotropy of a pure Fe were predicted. In this study, using the phase-field data-assimilation, we predict the solid-liquid interfacial energy and mobility and those anisotropy of a pure Al. The MD simulations of solidification are performed using LAMMSP on the GPU. The obtained interfacial properties are discussed by comparing to those reported previous papers.