A variational approach to two dimensional grain growth .2. Numerical results

Normal and abnormal grain growth evolution of a two-dimensional network of 1024 grains is investigated using a computer simulation based on the variational principle derived in Part I of this paper. A brief overview of normal grain growth theories is presented and the correlations between these theories and the numerical study discussed. Power law kinetics and a scaling state are found with a grain-growth exponent of beta = 0.52 and a second moment of mu(2) = 1.4 respectively. These results are concurrent with expected grain growth behaviour [1] and demonstrate the validity of the variational model. Copyright (C) 1996 Acta Metallurgica Inc.