Rev.Adv.Mater.Sci. (RAMS)
No 5, Vol. 18, 2008, pages 459-463

MICROSTRUCTURE DESCRIPTION FROM THE DIFFERENTIAL AVRAMI FORMULATION

D. Crespo, P. Bruna, E. Pineda and T. Pradell

Abstract

A model of microstructural evolution, based only on the original assumptions of the Kolmogorov, Johnson&Mehl, and Avrami model of nucleation and growth kinetics, is presented. It is based on the computation of the average grain size of all grains born at the same time along the transformation, neglecting the dispersion of the grain size around this value. The model is computationally simple and inexpensive, and gives a good description of the grain size distribution along the transformation as well as all its distinctive features.

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