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Modelling the precipitation of NbC on dislocations in a-Fe

Perrard, F. and Deschamps, Alexis and Maugis, Philippe Modelling the precipitation of NbC on dislocations in a-Fe. (2007) Acta Materialia, 55 (4). 1255-1266. ISSN 1359-6454

(Document in English)

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Official URL: http://dx.doi.org/10.1016/j.actamat.2006.10.003


A model has been developed for describing the precipitation of NbC on dislocations in ferrite in an Fe–C–Nb steel. This model is a continuous description of the classical laws for nucleation growth and coarsening, which are adapted to the specific case where precipitates only form on dislocations. This model is successfully applied on an extensive data set obtained by small-angle neutron scattering for a wide temperature range and two alloy contents. Using this model, it is possible to estimate the effects of process parameters on the final microstructure and, notably, it is shown that the initial dislocation density has a pronounced influence on the maximum precipitate density.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Acta Materialia website : http://www.sciencedirect.com/science/journal/13596454
HAL Id:hal-03592888
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Institut polytechnique de Grenoble (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Arcelor Mittal Research (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Laboratory name:
Deposited On:29 Apr 2009 08:10

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