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dc.contributor.authorINAL, Karim
dc.contributor.authorMASSON, Renaud
dc.contributor.author
 hal.structure.identifier
PESCI, Raphaël
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
dc.date.accessioned2015
dc.date.available2015
dc.date.issued2009
dc.date.submitted2015
dc.identifier.issn0921-5093
dc.identifier.urihttp://hdl.handle.net/10985/9615
dc.description.abstractAn original approach is proposed to predict the behavior of the16MND5bainitic steel (similar to U.S. A508 cl.3) in the lower range of the ductile-to-brittle transition region and at lower temperatures [−196 ◦C; 20 ◦C], by developing a new polycrystalline modeling concurrently with X-ray diffraction (XRD) analysis. A two-level homogenization is used to take into account each kind of heterogeneity as well as the phase and grain interactions. A Mori–Tanaka formulation first enables to describe the elastoplastic behavior of a bainitic single crystal (modeled as a single crystal ferritic matrix reinforced by cementite inclusions), while the transition to polycrystal is achieved by a self-consistent approach. This model can simulate in particular the effects of temperature. It reproduces qualitatively the stress distribution in the material (stress states are lower in ferrite than in the bulk material due to cementite particles, the difference never exceeding 150 MPa), the intergranular strain heterogeneity (ripples observed on the ε = f(sin2 ) curve) and the pole figures determined by XRD on different scales. The proposed approach is validated here on the macroscopic, phase and intraphase scale.
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectCrystallographic scale
dc.subjectIntergranular strains
dc.subjectMori-Tanaka/self-consistent modeling
dc.subjectPolycrystalline material
dc.subjectStress distribution
dc.titleThree scale modeling of the behavior of a 16MND5-A508 bainitic steel: Stress distribution at low temperatures
dc.identifier.doi10.1016/j.msea.2009.08.020
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Metz
dc.subject.halSciences de l'ingénieur: Matériaux
ensam.audienceInternationale
ensam.page376-386
ensam.journalMaterials Science and Engineering: A
ensam.volume527
ensam.issue1-2
hal.identifierhal-01166251
hal.version1
hal.submission.permittedupdateMetadata
hal.statusaccept


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