Study on the root causes for the premature failure of an aircraft turbine blade

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dc.contributor.authorSilveira, E.
dc.contributor.authorAtxaga, G.
dc.contributor.authorErauzkin, E.
dc.contributor.authorIrisarri, A. M.
dc.contributor.institutionCaracterizaciĆ³n y ValidaciĆ³n. Materiales
dc.contributor.institutionEXTREMAT
dc.contributor.institutionTecnalia Research & Innovation
dc.date.accessioned2024-07-24T12:08:58Z
dc.date.available2024-07-24T12:08:58Z
dc.date.issued2009-03
dc.description.abstractA study on the root causes of the premature failure of a set of blades belonging to the high pressure turbine of an aircraft engine has been carried out. These blades were manufactured using a precipitation hardened nickel base alloy. The study consisted in a fractographic analysis by scanning electron microscopy and a microstructural examination by optical and scanning electron microscopy, identifying those phases which were present by means of X-ray energy dispersive spectrometry. Fractographic analysis revealed that failure of the first blade was due to thermo-mechanical fatigue, initiated at the internal cooling cavities. The presence of large size, cracked, hafnium and tantalum primary carbides on the fracture surfaces indicates that they have played an important role on the failure process, accelerating it. The other blades failed later by the impacts of the fragments lost from the first one.en
dc.description.statusPeer reviewed
dc.format.extent9
dc.identifier.citationSilveira , E , Atxaga , G , Erauzkin , E & Irisarri , A M 2009 , ' Study on the root causes for the premature failure of an aircraft turbine blade ' , Engineering Failure Analysis , vol. 16 , no. 2 , pp. 639-647 . https://doi.org/10.1016/j.engfailanal.2008.02.013
dc.identifier.doi10.1016/j.engfailanal.2008.02.013
dc.identifier.issn1350-6307
dc.identifier.urihttps://hdl.handle.net/11556/3925
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=57749184601&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofEngineering Failure Analysis
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsMicrostructure
dc.subject.keywordsNickel base alloy
dc.subject.keywordsThermo-mechanical fatigue
dc.subject.keywordsTurbine blades
dc.subject.keywordsGeneral Materials Science
dc.subject.keywordsGeneral Engineering
dc.titleStudy on the root causes for the premature failure of an aircraft turbine bladeen
dc.typejournal article
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