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hal.structure.identifierScience et Ingénierie des Matériaux et Procédés [SIMaP]
dc.contributor.authorLAI, Qingquan
hal.structure.identifierLaboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
dc.contributor.authorBOUAZIZ, Olivier
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.identifierScience et Ingénierie des Matériaux et Procédés [SIMaP]
dc.contributor.authorBRÉCHET, Yves
hal.structure.identifierIMAP
dc.contributor.authorPARDOEN, Thomas
dc.date.issued2015
dc.identifier.issn0921-5093
dc.description.abstractEnThe plastic and fracture behavior of ultrafine-grained dual-phase (UFG-DP) steels (Fe-0.1 wt%C-3.5 wt%Mn) were analysed from the comparison with the coarser grained DP microstructures taken as references. The UFG-DP steel exhibits a superior balance between strength, uniform elongation and true fracture strain. The higher mechanical performance is explained by both a size effect and a relatively high Mn content in austenite which lead to a Transformation-Induced-Plasticity effect. Furthermore, the analysis shows that microstructure refinement significantly retards damage accumulation and modifies the dominant damage mechanism and fracture behavior. The analysis confirms that the present grade of ultrafine-grained DP steels is a serious candidate for automotive applications.
dc.language.isoen
dc.publisherElsevier
dc.subject.enUltrafine-grained metals
dc.subject.enDual-phase steel
dc.subject.enPlasticity
dc.subject.enDamage
dc.subject.enFracture
dc.title.enMicrostructure refinement of dual-phase steels with 3.5 wt% Mn : influence on plastic and fracture behavior
dc.typeArticle de revue
dc.identifier.doi10.1016/j.msea.2015.04.044
dc.subject.halChimie/Matériaux
bordeaux.journalMaterials Science and Engineering: A
bordeaux.page78-89
bordeaux.volume638
bordeaux.peerReviewedoui
hal.identifierhal-01166884
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01166884v1
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