Two-dimensional simulation of grain growth based on an atomic jump model for grain boundary migration

The kinetics and the topological phenomena during two-dimensional grain gro wth are studied by computer simulations based on an atomic jump model for g rain boundary migration. The grain boundaries are assumed to be straight. T he kinetics show the 1/2-power growth law for the average grain size, and t he size and the side distributions;are time-invariant. In particular, the s imulated side distribution is well consistent with the theoretical predicti on, The present simulation follows the Aboav-Weaire law for entire topologi cal classes. the Lewis law for intermediate topological classes and the von Neumann-Mullins law for intermediate and high classes. The deviation from the von Neumann-Mullins law for low topological classes is reduced by takin g account of the effects of curved grain boundaries. The other distinctive results of the simulation are also shown and discussed. (C) 2000 Elsevier S cience S.A. All rights reserved.