Alloying-element interactions with austenite/martensite interface during quenching and partitioning of a model Fe-C-Mn-Si alloy

Abstract : The alloying elements partitioning from martensite to austenite during quenching and partitioning was analysed by coupling in situ High Energy X-Ray Diffraction experiments and 3D atom probe tomography. A rapid and significant carbon partitioning from martensite to austenite without any partitioning of both Mn and Si was highlighted while the interface was immobile. After a relatively short time at 400 °C, a clear Mn partitioning occurs at the vicinity of the α′/γ interface. The analysis conducted indicates that manganese equilibrates its chemical potential during partitioning and raises the issue of the Constrained Carbon Equilibrium model applicability throughout the partitioning process.
Type de document :
Article dans une revue
Scripta Materialia, Elsevier, 2019, 162, pp.181-184. 〈10.1016/j.scriptamat.2018.11.012〉
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https://hal.archives-ouvertes.fr/hal-01945700
Contributeur : Stéphane Toulin <>
Soumis le : mercredi 5 décembre 2018 - 14:36:03
Dernière modification le : mercredi 13 février 2019 - 17:20:06

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Mohamed Gouné, Samy Aoued, Frédéric Danoix, Guillaume Geandier, Angéline Poulon-Quintin, et al.. Alloying-element interactions with austenite/martensite interface during quenching and partitioning of a model Fe-C-Mn-Si alloy. Scripta Materialia, Elsevier, 2019, 162, pp.181-184. 〈10.1016/j.scriptamat.2018.11.012〉. 〈hal-01945700〉

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