Monte Carlo simulation of spinodal decomposition in a ternary alloy within a three-phases field: comparison to phase transformation of ferrite in duplex stainless steels
1 Groupe de Physique des Matériaux, Université et INSA de Rouen, UMR 6634 CNRS Avenue de l'Université, BP 12, 76801 Saint Etienne du Rouvray, France
2 EDF R&D Département Matériaux et Mécanique des Composants, Avenue des Renardières - Ecuelles, 77818 Moret sur Loing, France
This work proposes to model phase transformations occurring in duplex stainless steels using atomistic kinetic Monte Carlo in a ternary model alloy. Kinetics are simulated in the three-phase field of a ternary system. Influence of the precipitation of the third phase on the kinetic of spinodal decomposition between the two other phases is studied in order to understand the synergy between spinodal decomposition and G-phase precipitation which exists in duplex stainless steels. Simulation results are compared to experimental data obtained with atom probe tomography.
Key words: atomistic kinetic Monte Carlo / duplex stainless steel / spinodal decomposition / precipitation
© Owned by the authors, published by EDP Sciences, 2014