Table 1: Calculation parameters of grain tip growth kinetics coefficients.

ElementsInitial concentration (%)Partition coefficient Liquidus slope (°C/wt%)Diffusion coefficient in liquid (m2/s)Gibbs-Thomson coefficient (K·m)

Al6.10.9−1190   10−9   2 × 10−7
V4.20.8−1500
Fe0.150.07−2000