Versenden
Drucken
Hernandez, Mercedes T. und Karlsson, Anette M. und Bartsch, Marion (2009) On TGO creep and the initiation of a class of fatigue cracks in thermal barrier coatings. Surface and Coatings Technology, 203, Seiten 3549-3558. Elsevier. doi: 10.1016/j.surfcoat.2009.05.018. ISSN 0257-8972.
Dieses Archiv kann nicht den Volltext zur Verfügung stellen.
Kurzfassung
The initiation of a class of fatigue cracks observed in thermal barrier coatings (TBCs) subjected to thermal gradient mechanical fatigue testing is investigated. The coating system is based on a NiCoCrAlY bond coat and a partially yttria stabilized zirconia top coat. To explain the development of the cracks of interest, the thermo-mechanical response of the bond coat and the thermally grown oxide (TGO) is examined and quantified through finite element analyses. The models include non-linear and time-dependent behavior such as creep, TGO growth stress, and thermo-mechanical cyclic loading. The simulations suggest that stressredistribution due to creep can lead to tensile stresses in the TGO during TGMF testing that are large enough to initiate the cracks investigated.
| elib-URL des Eintrags: | https://elib.dlr.de/61203/ | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
| Titel: | On TGO creep and the initiation of a class of fatigue cracks in thermal barrier coatings | ||||||||||||||||
| Autoren: |
| ||||||||||||||||
| Datum: | 2009 | ||||||||||||||||
| Erschienen in: | Surface and Coatings Technology | ||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||
| Band: | 203 | ||||||||||||||||
| DOI: | 10.1016/j.surfcoat.2009.05.018 | ||||||||||||||||
| Seitenbereich: | Seiten 3549-3558 | ||||||||||||||||
| Verlag: | Elsevier | ||||||||||||||||
| ISSN: | 0257-8972 | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | Thermal barrier coatings Thermally grown oxide Creep Fatigue cracks Finite element analysis | ||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||
| HGF - Programmthema: | L VU - Luftverkehr und Umwelt (alt) | ||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
| DLR - Forschungsgebiet: | L VU - Luftverkehr und Umwelt | ||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Schadstoffarmer Luftverkehr (alt) | ||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Werkstoff-Forschung > Experimentelle und numerische Methoden | ||||||||||||||||
| Hinterlegt von: | Bartsch, Dr.-Ing. Marion | ||||||||||||||||
| Hinterlegt am: | 27 Nov 2009 10:56 | ||||||||||||||||
| Letzte Änderung: | 28 Jul 2022 16:42 |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags
