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Article Dans Une Revue Computational Materials Science Année : 2018

Mixed-mode model for ferrite-to-austenite phase transformation in dual-phase steel

Résumé

A mixed-mode model is proposed to predict the austenite formation during intercritical annealing of a low-carbon steel with ferrite-cementite microstructure. The transformation kinetics is decribed by carbon diffusion in combination with an interface mobility, representative of complex phenomena slowing down the transformation rate (solute drag, slow diffusivity of other alloying elements, cementite dissolution). The model approach is formulated to be relevant for complex chemistries typical of industrial steels. Model predictions have been successfully benchmarked with experimental data including heating and holding stages at various heating rates and holding temperatures. Crown Copyright (C) 2018 Published by Elsevier B.V. All rights reserved.
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hal-01814047 , version 1 (12-06-2018)

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Melanie Ollat, Matthias Militzer, Véronique Massardier-Jourdan, D. Fabregue, Eric Buscarlet, et al.. Mixed-mode model for ferrite-to-austenite phase transformation in dual-phase steel. Computational Materials Science, 2018, 149, pp.282-290. ⟨10.1016/j.commatsci.2018.02.052⟩. ⟨hal-01814047⟩
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