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Meeting 2010 TMS Annual Meeting & Exhibition
Symposium Computational Thermodynamics and Kinetics
Presentation Title Phase Field Modelling of Austenite Formation from a Ferrite-Carbide Lamella Structure
Author(s) Hamid Azizi-Alizamini, Matthias Militzer, Warren Poole
On-Site Speaker (Planned) Hamid Azizi-Alizamini
Abstract Scope In this study, austenite formation from a lamella ferrite-carbide structure in a plain C-Mn steel was simulated using a phase field approach in two- and three-dimensional space. The model quantitatively describes the kinetics of austenite formation during contineous heating of a lamella ferrite-carbide aggregate to form a fully austenite structure. Simultaneously, it is also capable of capturing spheroidization of carbide lamella during heating. The model can resolve the interlamellar spacing of about 500 nm to mimic the morphological complexity of microstructural features during austenite formation. The interface mobility was used as a fitting parameter to obtain agreement between the simulation results and experimental data for the transformation kinetics.
Proceedings Inclusion? Definite: A CD-only volume

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