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Temperature hysteresis of the order-disorder transition in carbon-supersaturated α-Fe

hal.structure.identifierInstitut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
dc.contributor.authorMAUGIS, Philippe
hal.structure.identifierGroupe de physique des matériaux [GPM]
dc.contributor.authorDANOIX, F.
hal.structure.identifierGroupe de physique des matériaux [GPM]
dc.contributor.authorZAPOLSKY, Helena
hal.structure.identifierMatériaux, ingénierie et science [Villeurbanne] [MATEIS]
dc.contributor.authorCAZOTTES, Sophie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGOUNÉ, Mohamed
dc.date.issued2017-12
dc.identifier.issn1098-0121
dc.description.abstractEnAlthough many works have been devoted to the order-disorder transition in carbon-supersaturated α-Fe, all seem to have overlooked the temperature hysteresis phenomenon occurring around the critical temperature. It is shown, from a mean-field model based on the elasticity theory of point defects, that the origin of the temperature hysteresis is thermodynamic. As a consequence, both the critical temperature and carbon concentration for the order-disorder transition can be defined upon heating and cooling. The results obtained were successfully compared to molecular dynamics simulations, and are evidence that the transition is of first order and that linear elasticity is the predominant source of the thermodynamics of the Fe-C solid solutions.
dc.description.sponsorshipEtude de la décomposition spinodale dans les aciers martensitiques Fe-X-C - ANR-13-BS08-0014
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enTemperature hysteresis of the order-disorder transition in carbon-supersaturated α-Fe
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevB.96.214104
dc.subject.halChimie/Matériaux
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
bordeaux.journalPhysical Review B: Condensed Matter and Materials Physics (1998-2015)
bordeaux.page214104 - 214104
bordeaux.volume96
bordeaux.issue21
bordeaux.peerReviewedoui
hal.identifierhal-01789207
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01789207v1
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