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dc.rights.licenseAttribution 4.0 International*
dc.contributor.authorMendiguren, Joseba
dc.contributor.otherVitzthum, Simon
dc.contributor.otherRebelo Kornmeier, Joana
dc.contributor.otherHofmann, Michael
dc.contributor.otherGruber, Maximilian
dc.contributor.otherNorz, Roman
dc.contributor.otherMaawad, Emad
dc.contributor.otherVolk, Wolfram
dc.description.abstractModeling the elastic behavior of dual-phase steels is complex due to the strain dependency of Young's modulus and high elastic nonlinearity. Since it is assumed that reasons for this are to be found in microstructural behavior, microscopic in-situ analysis are necessary, but due to the overlap of the martensite and ferrite peaks, the evaluation of diffraction profiles is highly complex. Within this work, CR590Y980T (DP1000) is investigated in a continuous cyclic tensile and tension-compression test under synchrotron radiation at High Energy Material Science beamline P07 in Petra III, DESY. On basis of additional EBSD measurements, an evaluation approach is shown to analyze the dual-phase diffraction profiles in such a way that martensite and ferrite can be separated for three lattice planes. The origin of the specific elastic-plastic behavior of dual-phase steels in terms of onset of yielding, anelasticity or early re-yielding is analyzed on the basis of lattice strains and interphase stresses. For this, the time-synchronously measured micro data is correlated with the macro stress-strain relationship and thermoelastic effect. The results help to better understand strain-dependent elastic-plastic behavior of DP steels on a micro level and provide great potential to improve characterization and modeling in terms of springback prediction.en
dc.rights© 2022 The Authorsen
dc.subjecthigh-strength steelen
dc.subjectElastic-plastic material behavioren
dc.subjectIn-situ diffractionen
dc.subjectEvaluation approachen
dc.titleIn-situ analysis of the elastic-plastic characteristics of high strength dual-phase steelen
dcterms.sourceMaterials Science and Engineering: A.en
local.contributor.groupProcesos avanzados de conformación de materialeses
local.contributor.otherinstitutionTechnische Universität Münchende
local.contributor.otherinstitutionInstitute of Materials Physics, Geesthachten
local.source.detailsArticle 144097. Available online 30 September, 2022en

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Except where otherwise noted, this item's license is described as Attribution 4.0 International