Fatigue properties of B1914 superalloy at high temperatures

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dc.contributor.authorHorník, Vítcs
dc.contributor.authorFintová, Stanislavacs
dc.contributor.authorŠmíd, Miroslavcs
dc.contributor.authorHutař, Pavelcs
dc.contributor.authorHrbáček, Karelcs
dc.contributor.authorKunz, Ludvíkcs
dc.coverage.issue1cs
dc.coverage.volume23cs
dc.date.accessioned2020-07-31T06:59:00Z
dc.date.available2020-07-31T06:59:00Z
dc.date.issued2020-02-19cs
dc.description.abstractB1914 is a nickel-based superalloy with an increased amount of B (boron) and C (carbon) to reach an adequate amount of borides and carbides in the cast structure ensuring improved creep properties. However, the influence of the structure on the material high-cycle fatigue properties is not sufficiently described. The present study brings the experimental results on the high-cycle fatigue properties of a cast polycrystalline nickel-based boron-rich B1914 superalloy, obtained at temperatures of 800, 900 and 950 °C. The cast superalloy was processed by hot isostatic pressing (HIP) to diminish the casting defects. The fatigue tests were performed in symmetrical loading in laboratory air. The fracture surfaces of the specimens were studied by scanning electron microscopy in order to describe the influence of temperature on the fatigue crack initiation and propagation. Change of the primary fatigue crack propagation mechanism from the crystallographic to the non-crystallographic mechanism was observed with increasing temperature. Decrease of a material lifetime and decrease of the fatigue endurance limit due to the increasing testing temperature was observed.en
dc.formattextcs
dc.format.extent191-196cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Structural Integrity. 2020, vol. 23, issue 1, p. 191-196.en
dc.identifier.doi10.1016/j.prostr.2020.01.085cs
dc.identifier.issn2452-3216cs
dc.identifier.other164316cs
dc.identifier.urihttp://hdl.handle.net/11012/193516
dc.language.isoencs
dc.publisherElsevier B.V.cs
dc.relation.ispartofProcedia Structural Integritycs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S245232162030144Xcs
dc.rightsCreative Commons Attribution 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/4.0/cs
dc.subjecthigh-cycle fatigueen
dc.subjectsuperalloyen
dc.subjectB1914en
dc.subjecthigh temperatureen
dc.titleFatigue properties of B1914 superalloy at high temperaturesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-164316en
sync.item.dbtypeVAVen
sync.item.insts2021.01.27 16:57:11en
sync.item.modts2021.01.27 16:15:28en
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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