Two-dimensional cellular automata simulations were carried out to study the
case of the crystallization (or recrystallization) of a matrix containing an
inert, immobile second phase. A range of particle area fractions and aspect
ratios were investigated under continuous grain nucleation conditions,
assuming that the effect of particles is limited to geometric impingement
upon contact with the growing grains. Systematic deviations from the
classical Johnson, Mehl, Avrami, Kolmogo-rov equation for single-phase
materials are observed with increasing particle aspect ratio and particle
fraction. Inert particles also influence both mean size and mean aspect
ratio of the final grains.