Quantitative phase field modelling of precipitate coarsening in Ni-Al-Mo alloys

(a) Phase diagram in Fahrmann et al. (1997) at 927 °C. (b) Phase diagram from Thermocalc at 775 °C. The curvature of the free energy surface (for the γ phase) is overestimated by ThermoCalc and hence a critical comparison between experimentally observed coarsening rate and predictions of phase field model is difficult.123