OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Carburization of austenitic and ferritic stainless steels in liquid sodium: Comparison between experimental observations and simulations

Romedenne, Marie Michelle and Rouillard, Fabien and Hamon, Didier and Malard, Benoît and Monceau, Daniel Carburization of austenitic and ferritic stainless steels in liquid sodium: Comparison between experimental observations and simulations. (2019) Corrosion Science, 159. 108147. ISSN 0010938X

[img] (Document in English)

PDF (Author's version) - Depositor and staff only until 15 February 2020 - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
3MB

Official URL: https://doi.org/10.1016/j.corsci.2019.108147

Abstract

Three steels were exposed in carburizing sodium at 600 and 650 °C. The kinetics and extent of carburization were characterized. Numerical simulations using the coupled thermodynamic-kinetic modeling software DICTRA were performed. It was proposed that the observed carbon diffusion profiles were induced by the combined diffusion of carbon in the grains and at grain boundaries coupled with the slow formation of carbides. The blocking effect of carbides on the carbon diffusion was observed to evolve as a function of time and microstructure. Acceptable agreement between experimental and simulated intragranular carbon profiles was achieved by optimizing the labyrinth factor and phases.

Item Type:Article
HAL Id:hal-02388742
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Statistics:download
Deposited By: cirimat webmestre
Deposited On:02 Dec 2019 08:43

Repository Staff Only: item control page