Investigation of calcium-magnesium-alumino-silicate (CMAS) resistance and hot corrosion behavior of YSZ and La2Zr2O7/YSZ thermal barrier coatings (TBCs) produced with CGDS method

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dc.authoridDoleker, Kadir Mert/0000-0003-4057-6832
dc.authoridAHLATCI, Hayrettin/0000-0002-6766-4974
dc.contributor.authorOzgurluk, Yasin
dc.contributor.authorDoleker, Kadir Mert
dc.contributor.authorAhlatci, Hayrettin
dc.contributor.authorKaraoglanli, Abdullah Cahit
dc.date.accessioned2024-09-29T16:00:47Z
dc.date.available2024-09-29T16:00:47Z
dc.date.issued2021
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThermal barrier coatings (TBCs) commonly expose to oxidation, hot corrosion, and CaO-MgO-Al2O3-SiO2 (CMAS) attacks during the service condition. All of these attacks cause the spallation or delamination of TBCs from the bond coat. In this study, the effect of these attacks on YSZ and La2Zr2O7/YSZ TBC systems was investigated. YSZ and double layer La2Zr2O7/YSZ topcoats were deposited using electron beam physical technique (EB-PVD) on CoNiCrAlY bond coat produced by cold gas dynamic spray (CGDS) technique. CMAS tests at 1225 degrees C for 4, 8, 12, 16, 20, 24, 28, and 32 h and 5 h cyclic hot corrosion tests at 1000 degrees C were carried out on TBCs. Before and after the tests, TBCs were characterized using scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), x-ray diffraction (XRD) and image analysis software program. At the end of the tests, the formed phases, microstructural changes, and general failure mechanisms were investigated in detail for each test. The general result shows that double-layered TBCs provide significant contributions and durability against high-temperature corrosive attacks of conventional YSZ TBC. In addition, in this study, hot corrosion damage mechanism and CMAS attack significantly damaged the column morphology of the EB-PVD method, reducing the thermal insulation properties and strain tolerance of TBCs. As a result of the tests, spallation and phase changes occurred in the damaged TBC systems.en_US
dc.description.sponsorshipScientific Research Projects (BAP) Coordinatorship of Bartin University [2017-Fen-A-004]; Scientific and Technological Research Council of Turkey; TUBITAK [113R049]en_US
dc.description.sponsorshipThis investigation was financially supported by Scientific Research Projects (BAP) Coordinatorship of Bartin University with project number of 2017-Fen-A-004 and the Scientific and Technological Research Council of Turkey with the project code of TUBITAK, 113R049.en_US
dc.identifier.doi10.1016/j.surfcoat.2021.126969
dc.identifier.issn0257-8972
dc.identifier.issn1879-3347
dc.identifier.scopus2-s2.0-85101304122en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.surfcoat.2021.126969
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5354
dc.identifier.volume411en_US
dc.identifier.wosWOS:000655545500005en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofSurface & Coatings Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectThermal barrier coatings (TBCs)en_US
dc.subjectCalciumen_US
dc.subjectMagnesium-alumino-silicate (CMAS)en_US
dc.subjectHot corrosionen_US
dc.subjectCold gas dynamic spray (CGDS)en_US
dc.subjectThermally grown oxide (TGO)en_US
dc.subjectLanthanum zirconate (La2Zr2O7)en_US
dc.titleInvestigation of calcium-magnesium-alumino-silicate (CMAS) resistance and hot corrosion behavior of YSZ and La2Zr2O7/YSZ thermal barrier coatings (TBCs) produced with CGDS methoden_US
dc.typeArticleen_US

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