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HUTAŘOVÁ, S. OBRTLÍK, K. JULIŠ, M. ČELKO, L. JULIŠOVÁ, M. PODRÁBSKÝ, T.
Originální název
Degradation of TBC Coating during Low-cycle Fatigue Tests at High Temperature
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
The work is focused on the study of degradation of ZrO2 stabilized by Y2O3 (YSZ) thermal-barrier-coating system with CoNiCrAlY bond coat applied on cast polycrystalline nickelbased superalloy Inconel 713LC. Cylindrical specimens in as-coated conditions were cyclically strained under strain control with constant total strain amplitude in symmetrical cycle at high temperature (900 oC) in air. Coating system YSZ with CoNiCrAlY bond coat were prepared by APS method on blasted surface. The microstructure of TBC was characterized with scanning electron microscopy and energy dispersion X-ray analysis. The coating thickness and hardness profile was measured. Fracture surface, surface relief and polished sections parallel to the specimen axis were examined to study damage mechanisms in coatings under cyclic loading at high temperature. It was find that initiation of the fatigue crack usually occurs on interface YSZ-CoNiCrAlY and the trajectory of the further crack propagation was documented.
Klíčová slova
High temperature fatigue; YSZ; CoNiCrAlY; Inconel 713LC; crack initiation; crack propagation
Autoři
HUTAŘOVÁ, S.; OBRTLÍK, K.; JULIŠ, M.; ČELKO, L.; JULIŠOVÁ, M.; PODRÁBSKÝ, T.
Rok RIV
2014
Vydáno
1. 4. 2014
Nakladatel
Trans Tech Publications Ltd
Místo
Zurich-Durnten, Switzerland
ISBN
9783037859346
Kniha
Key Engineering Materials
ISSN
1013-9826
Periodikum
Key Engineering Materials (print)
Ročník
Číslo
592-593
Stát
Švýcarská konfederace
Strany od
461
Strany do
464
Strany počet
4
URL
http://www.scientific.net/KEM.592-593.461
BibTex
@inproceedings{BUT105746, author="Simona {Hutařová} and Karel {Obrtlík} and Martin {Juliš} and Ladislav {Čelko} and Martina {Julišová} and Tomáš {Podrábský}", title="Degradation of TBC Coating during Low-cycle Fatigue Tests at High Temperature", booktitle="Key Engineering Materials", year="2014", journal="Key Engineering Materials (print)", volume="2014", number="592-593", pages="461--464", publisher="Trans Tech Publications Ltd", address="Zurich-Durnten, Switzerland", doi="10.4028/www.scientific.net/KEM.592-593.461", isbn="9783037859346", issn="1013-9826", url="http://www.scientific.net/KEM.592-593.461" }