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Mechanism of Austenite Formation from Spheroidized Microstructure in an Intermediate Fe-0.1C-3.5Mn Steel

hal.structure.identifierScience et Ingénierie des Matériaux et Procédés [SIMaP ]
hal.structure.identifierUniversity of British Columbia [Canada] [UBC]
dc.contributor.authorLAI, Qingquan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGOUNÉ, Mohamed
hal.structure.identifierArcelorMittal R&D Automat
dc.contributor.authorPERLADE, Astrid
hal.structure.identifierInstitute of Mechanics, Materials and Civil Engineering [Louvain] [IMMC]
dc.contributor.authorPARDOEN, Thomas
hal.structure.identifierInstitute of Mechanics, Materials and Civil Engineering [Louvain] [IMMC]
dc.contributor.authorJACQUES, Pascal
hal.structure.identifierLaboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
dc.contributor.authorBOUAZIZ, Olivier
hal.structure.identifierScience et Ingénierie des Matériaux et Procédés [SIMaP ]
dc.contributor.authorBRÉCHET, Yves
dc.date.issued2016-07
dc.identifier.issn1073-5623
dc.description.abstractEnThe austenitization from a spheroidized microstructure during intercritical annealing was studied in a Fe-0.1C-3.5Mn alloy. The austenite grains preferentially nucleate and grow from intergranular cementite. The nucleation at intragranular cementite is significantly retarded or even suppressed. The DICTRA software, assuming local equilibrium conditions, was used to simulate the austenite growth kinetics at various temperatures and for analyzing the austenite growth mechanism. The results indicate that both the mode and the kinetics of austenite growth strongly depend on cementite composition. With sufficiently high cementite Mn content, the austenite growth is essentially composed of two stages, involving the partitioning growth controlled by Mn diffusion inside ferrite, followed by a stage controlled by Mn diffusion within austenite for final equilibration. The partitioning growth results in a homogeneous distribution of carbon within austenite, which is supported by NanoSIMS carbon mapping.
dc.language.isoen
dc.publisherSpringer Verlag/ASM International
dc.subject.enFerrite
dc.subject.enAustenite
dc.subject.enCementite
dc.subject.enIntercritical Annealing
dc.subject.enAustenite Formation
dc.title.enMechanism of Austenite Formation from Spheroidized Microstructure in an Intermediate Fe-0.1C-3.5Mn Steel
dc.typeArticle de revue
dc.identifier.doi10.1007/s11661-016-3547-y
dc.subject.halChimie/Matériaux
bordeaux.journalMetallurgical and Materials Transactions A
bordeaux.page3375-3386
bordeaux.volume47
bordeaux.issue7
bordeaux.peerReviewedoui
hal.identifierhal-01331779
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01331779v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Metallurgical%20and%20Materials%20Transactions%20A&rft.date=2016-07&rft.volume=47&rft.issue=7&rft.spage=3375-3386&rft.epage=3375-3386&rft.eissn=1073-5623&rft.issn=1073-5623&rft.au=LAI,%20Qingquan&GOUN%C3%89,%20Mohamed&PERLADE,%20Astrid&PARDOEN,%20Thomas&JACQUES,%20Pascal&rft.genre=article


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