Stage I fatigue cracking in MAR-M 247 superalloy at elevated temperatures

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dc.contributor.authorŠmíd, Miroslavcs
dc.contributor.authorHutař, Pavelcs
dc.contributor.authorHorník, Vítcs
dc.contributor.authorHrbáček, Karelcs
dc.contributor.authorKunz, Ludvíkcs
dc.coverage.issue1cs
dc.coverage.volume2cs
dc.date.accessioned2021-12-10T15:53:10Z
dc.date.available2021-12-10T15:53:10Z
dc.date.issued2016-07-21cs
dc.description.abstractNickel base superalloys exhibit fatigue fracture behavior with features of brittle-like cleavage cracking under high cycle fatigue loading at temperatures up to approximately 800 °C. This specific fracture behavior was already documented in several studies, but a possible mechanism of fatigue crack propagation under this mode has not been made completely clear yet. The aim of this paper is to put more light on the phenomenon by using advanced electron microscopy techniques like electron back-scattered diffraction (EBSD) and focused ion beam (FIB) sectioning. Fractured specimens after high cycle fatigue tests were thoroughly examined with the aim to localize the fatigue crack initiation sites and accompanying features of the fatigue crack propagation. Several specimens were cross-sectioned in order to characterize active slip systems, cyclic plastic deformation localization and fatigue crack propagation. Dislocation structures were studied by transmission electron microscopy (TEM).en
dc.formattextcs
dc.format.extent3018-3025cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Structural Integrity. 2016, vol. 2, issue 1, p. 3018-3025.en
dc.identifier.doi10.1016/j.prostr.2016.06.378cs
dc.identifier.issn2452-3216cs
dc.identifier.other127554cs
dc.identifier.urihttp://hdl.handle.net/11012/203170
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofProcedia Structural Integritycs
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S2452321616303961cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2452-3216/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectSuperalloyen
dc.subjectHigh cycle fatigueen
dc.subjectElevated temperatureen
dc.subjectMAR-M 247en
dc.subjectFatigue crack initiationen
dc.titleStage I fatigue cracking in MAR-M 247 superalloy at elevated temperaturesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-127554en
sync.item.dbtypeVAVen
sync.item.insts2021.12.10 16:53:10en
sync.item.modts2021.12.10 16:14:19en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav materiálových věd a inženýrstvícs
thesis.grantorVysoké učení technické v Brně. . Ústav fyziky materiálů AV ČRcs
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