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SMÉKALOVÁ, J. POSPÍŠILOVÁ, S. OBRTLÍK, K. JULIŠ, M. PODRÁBSKÝ, T.
Originální název
Fatigue Crack Initiation and Propagation in Coated and Uncoated Inconel 713LC at 800 degC
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
Fatigue crack initiation and propagation was studied in cast polycrystalline nickel base superalloy Inconel 713LC in as-received condition and with surface treatment by AlSi protective coating. Cylindrical specimens were cyclically strained under strain control with constant total strain amplitude at 800 ?C. Fatigue fracture surface, specimen surface, and specimen sections were investigated using optical microscopy and scanning electron microscopy. Fatigue crack initiation sites and fatigue crack growth mechanisms were identified and crack propagation rates were obtained base on striation spacing in fracture surfaces. The crack initiation mechanism study revealed reasons for the fatigue life increase in the surface treated material.
Klíčová slova
initiation, fatigue crack propagation, crack propagation rate, fractography, striation
Autoři
SMÉKALOVÁ, J.; POSPÍŠILOVÁ, S.; OBRTLÍK, K.; JULIŠ, M.; PODRÁBSKÝ, T.
Rok RIV
2010
Vydáno
1. 12. 2010
Nakladatel
VŠB Ostrava
Místo
Ostrava
ISSN
1210-0471
Periodikum
Transaction of the VŠB-Technical university of Ostrava, Mechanical series
Ročník
LVI
Číslo
2
Stát
Česká republika
Strany od
155
Strany do
162
Strany počet
8
BibTex
@article{BUT50304, author="Jana {Smékalová} and Simona {Hutařová} and Karel {Obrtlík} and Martin {Juliš} and Tomáš {Podrábský}", title="Fatigue Crack Initiation and Propagation in Coated and Uncoated Inconel 713LC at 800 degC", journal="Transaction of the VŠB-Technical university of Ostrava, Mechanical series", year="2010", volume="LVI", number="2", pages="155--162", issn="1210-0471" }