Carbon diffusivity and kinetics of spinodal decomposition of martensite in a model Fe-Ni-C alloy
MAUGIS, Philippe
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
Voir plus >
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
MAUGIS, Philippe
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
< Réduire
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
Langue
en
Article de revue
Ce document a été publié dans
Materials Letters. 2018-03, vol. 214, p. 213-216
Elsevier
Résumé en anglais
From direct observations and measurements at the atomic scale by atom probe tomography coupled with calculations using a mean-field approach, the kinetics of low temperature carbon redistribution in martensite of a Fe-Ni-C ...Lire la suite >
From direct observations and measurements at the atomic scale by atom probe tomography coupled with calculations using a mean-field approach, the kinetics of low temperature carbon redistribution in martensite of a Fe-Ni-C alloy was investigated for duration up to 4.5 years. The results suggest that the ordered phase α″-Fe16C2 forms via a spinodal decomposition mechanism, in the range of a few days at room-temperature. The approach proposed allows us to retrieve the diffusivity of carbon in a large composition range during decomposition kinetics of martensite into α-Fe and α″-Fe16C2.< Réduire
Mots clés en anglais
Steels
Carbon diffusion
Spinodal decomposition
Martensite
Atom probe tomography
Project ANR
Etude de la décomposition spinodale dans les aciers martensitiques Fe-X-C - ANR-13-BS08-0014
Origine
Importé de halUnités de recherche