Modelling of dendritic solidification in undercooled dilute Ni–Zr melts Original Research Article

The kinetics of dendritic solidification in undercooled Ni–Zr samples is analyzed using new experimental results and theoretical studies based on a sharp-interface model and phase-field simulations. The predictions of a sharp-interface model and of a diffuse-interface model describing the phase transition considering both thermal and solutal diffusion are compared with the new experimental results by evaluating the dendritic tip velocity in electromagnetically levitated Ni–Zr samples.