The Role of Dispersions in Modeling the Kinetics of Phase Transformations
In classical models of microstructural evolution, the natural dispersion existing in the samples is often neglected. In this paper, we propose a general model that takes into account the dispersion. This model is applied to two cases of phase transformations in steels: the first one concerns the bainitic transformation and the second is dedicated to austenite to ferrite transformation. Through these examples, we show that not taking account the effects of dispersion in the model can lead to (i) incorrect prediction of the overall kinetics or (ii) an incorrect parameter fitting of the experimental data.
Yves Bréchet, Emmanuel Clouet, Alexis Deschamps, Alphonse Finel and Frédéric Soisson
M. Gouné and P. Maugis, "The Role of Dispersions in Modeling the Kinetics of Phase Transformations", Solid State Phenomena, Vols. 172-174, pp. 279-284, 2011