Article ID Journal Published Year Pages File Type
10620979 Acta Materialia 2005 13 Pages PDF
Abstract
Computer simulations of diffusion-controlled phase transformations in model alloys of Fe-Cr-C, Fe-Cr-W-C, Fe-Cr-Si-C, and Fe-Cr-Co-V-C are presented. The compositions considered are typical for ferritic steels. The simulations are performed using the software DICTRA and the thermodynamic calculations of phase equilibria are performed using Thermo-Calc. The thermodynamic driving forces and the kinetics of diffusion-controlled precipitation reactions of M23C6, M7C3, cementite and Laves-phase (Fe, Cr)2W are discussed. The simultaneous growth of stable and metastable phases is treated in a multi-cell approach. The results show remarkable effects on the growth kinetics due to the competition during simultaneous growth.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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