Stress distribution correlated with damage in duplex stainless steel studied by synchrotron diffraction during plastic necking

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dc.contributor.author ZHAO, Y
ensam.hal.laboratories
  93484 Université de Technologie Troyes [UTT]
dc.contributor.author LE JONCOUR, L
ensam.hal.laboratories
  93484 Université de Technologie Troyes [UTT]
dc.contributor.author BACZMAŃSKI, A.
ensam.hal.laboratories
  63845 AGH University of Science and Technology [Pologne]
dc.contributor.author GADALIŃSKA, E
ensam.hal.laboratories
  232948 Institute of Aviation [Warsaw]
dc.contributor.author WROŃSKI, S
ensam.hal.laboratories
  63845 AGH University of Science and Technology [Pologne]
dc.contributor.author PANICAUD, B
ensam.hal.laboratories
  116261 Institut Charles Delaunay [ICD]
dc.contributor.author FRANÇOIS, M
ensam.hal.laboratories
  116261 Institut Charles Delaunay [ICD]
dc.contributor.author BRAHAM, C
ensam.hal.laboratories
  86289 Procédés et Ingénierie en Mécanique et Matériaux [Paris] [PIMM]
dc.contributor.author BUSLAPS, T
ensam.hal.laboratories
  2568 European Synchrotron Radiation Facility [ESRF]
dc.date.accessioned 2017-03-23T10:25:40Z
dc.date.available 2017-07-01T00:18:58Z
dc.date.issued 2017-01-05
dc.date.submitted 2017-03-12T11:55:30Z
dc.identifier.uri http://hdl.handle.net/10985/11660
dc.description.abstract The goal of this work was the determination of lattice strains distribution in two phases of duplex steel during plastic necking. Subsequently, the stress heterogeneity in the neck was studied in order to determine the reason for the damage initiation and to verify the hypothesis that the damage begins in the ferritic phase. To do this, X-ray synchrotron radiation was used to scan the ‘in situ’ variation of the interplanar spacings along the necking zone for samples subjected to tensile loading. A self-consistent model and FEM simulation were applied for the experimental data interpretation.
It was found that for advanced necking the phase lattice strains, especially those measured at some distance from the neck centre, show a large inversion of the loads localised in both phases compared to the undamaged state (the lattice strains in the ferrite become smaller than in the austenite). This effect indicates stress relaxation in the ferrite which is connected with the damage phenomenon. Correlation of the experimental results with the modelling shows that the value of von Mises stress is responsible for the initiation of the ferritic phase softening.
en
dc.language.iso en
dc.publisher Elsevier
dc.rights Post-print
dc.subject Elastoplastic deformation en
dc.subject Necking en
dc.subject Damage en
dc.subject Polycrystalline material en
dc.subject Self-consistent model en
dc.subject Synchrotron diffraction en
dc.title Stress distribution correlated with damage in duplex stainless steel studied by synchrotron diffraction during plastic necking en
ensam.hal.id hal-01494328 *
ensam.hal.status accept *
ensam.embargo.terms 2017-07-01
dc.identifier.doi 10.1016/j.matdes.2016.10.014
dc.typdoc Articles dans des revues avec comité de lecture
dc.localisation Centre de Paris
dc.subject.hal Sciences de l'ingénieur: Matériaux
dc.subject.hal Sciences de l'ingénieur: Mécanique
ensam.audience Internationale
ensam.page 157–168
ensam.journal Materials & Design
ensam.volume 113
ensam.peerReviewing Oui

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