Experimental Analysis of the Stability of Retained Austenite in a Low-Alloy 42CrSi Steel after Different Quenching and Partitioning Heat Treatments

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dc.date.accessioned2023-10-18T14:33:36Z
dc.date.available2023-10-18T14:33:36Z
dc.date.issued2023-06-21
dc.description.sponsorshipGefördert im Rahmen des Projekts DEALger
dc.identifierdoi:10.17170/kobra-202310188873
dc.identifier.urihttp://hdl.handle.net/123456789/15115
dc.language.isoeng
dc.relation.doidoi:10.1002/adem.202300380
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectin situ characterizationseng
dc.subjectmicrostructureseng
dc.subjectquenching and partitioning steelseng
dc.subjectsynchrotron diffractioneng
dc.subjecttransformation-induced plasticity effectseng
dc.subjectX-ray diffractioneng
dc.subject.ddc600
dc.subject.swdIn situger
dc.subject.swdMikrostrukturger
dc.subject.swdSynchrotronger
dc.subject.swdRöntgenbeugungger
dc.subject.swdAustenitger
dc.subject.swdStahlger
dc.titleExperimental Analysis of the Stability of Retained Austenite in a Low-Alloy 42CrSi Steel after Different Quenching and Partitioning Heat Treatmentseng
dc.typeAufsatz
dc.type.versionpublishedVersion
dcterms.abstractQuenching and partitioning (Q&P) steels are characterized by an excellent combination of strength and ductility, opening up great potentials for advanced lightweight components. The Q&P treatment results in microstructures with a martensitic matrix being responsible for increased strength whereas interstitially enriched metastable retained austenite (RA) contributes to excellent ductility. Herein, a comprehensive experimental characterization of microstructure evolution and austenite stability is carried out on a 42CrSi steel being subjected to different Q&P treatments. The microstructure of both conditions is characterized by scanning electron microscopy as well as X-ray diffraction (XRD) phase analysis. Besides macroscopic standard tensile tests, RA evolution under tensile loading is investigated by in situ XRD using synchrotron and laboratory methods. As a result of different quenching temperatures, the two conditions considered are characterized by different RA contents and morphologies, resulting in different strain hardening behaviors as well as strength and ductility values under tensile loading. In situ synchrotron measurements show differences in the transformation kinetics being rationalized by the different morphologies of the RA. Eventually, the evolution of the phase specific stresses can be explained by the well-known Masing model.eng
dcterms.accessRightsopen access
dcterms.creatorLiehr, Alexander
dcterms.creatorWegener, Thomas
dcterms.creatorDegener, Sebastian
dcterms.creatorBolender, Artjom
dcterms.creatorMöller, Nico
dcterms.creatorNiendorf, Thomas
dcterms.extent16 Seiten
dcterms.source.articlenumber2300380
dcterms.source.identifiereissn:1527-2648
dcterms.source.issueIssue 17
dcterms.source.journalAdvanced Engineering Materialseng
dcterms.source.volumeVolume 25
kup.iskupfalse

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