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]
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Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
MAUGIS, Philippe
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
< Leer menos
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
Idioma
en
Article de revue
Este ítem está publicado en
Materials Letters. 2018-03, vol. 214, p. 213-216
Elsevier
Resumen en inglés
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 ...Leer más >
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.< Leer menos
Palabras clave en inglés
Steels
Carbon diffusion
Spinodal decomposition
Martensite
Atom probe tomography
Proyecto ANR
Etude de la décomposition spinodale dans les aciers martensitiques Fe-X-C - ANR-13-BS08-0014
Orígen
Importado de HalCentros de investigación