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ŠMÍD, M. OBRTLÍK, K. PETRENEC, M. POLÁK, J.
Originální název
Effect of tensile dwell on low cycle fatigue of cast superalloy Inconel 792-5A at 800 C
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
Effect of tensile dwell on low cycle fatigue of cast Inconel 792-5A is studied in symmetrical strain cycling at 800 C. Cyclic hardening/softening curves, cyclic stress-strain curves (CSSC) and fatigue life curves were obtained in continuous cycling and in cycling with tensile dwells. Dwells have slight effect on hardening/softening curves at high strain amplitudes. CSSC in cycling with dwells is shifted to lower stress amplitudes. No significant effect of dwells on Basquin curves is observed. Density of slip markings in cintinuous cycling is significantly higher in comparison with cycling with dwells. Samples cycled with dwells are typical of high density of secondary cracks, although sporadic slip markings were also found.
Klíčová slova
nickle base superalloy, elevated temperatures, low cycle fatigue, dwells
Autoři
ŠMÍD, M.; OBRTLÍK, K.; PETRENEC, M.; POLÁK, J.
Rok RIV
2012
Vydáno
13. 1. 2012
Nakladatel
Trans Tech Publications
Místo
Švýcarsko
ISSN
1013-9826
Periodikum
Key Engineering Materials (print)
Ročník
Číslo
488-489
Stát
Švýcarská konfederace
Strany od
735
Strany do
738
Strany počet
4
BibTex
@article{BUT74247, author="Miroslav {Šmíd} and Karel {Obrtlík} and Martin {Petrenec} and Jaroslav {Polák}", title="Effect of tensile dwell on low cycle fatigue of cast superalloy Inconel 792-5A at 800 C", journal="Key Engineering Materials (print)", year="2012", volume="2012", number="488-489", pages="735--738", issn="1013-9826" }