Publication result detail

Effect of tensile dwell on low cycle fatigue of cast superalloy Inconel 792-5A at 800 C

ŠMÍD, M.; OBRTLÍK, K.; PETRENEC, M.; POLÁK, J.

Original Title

Effect of tensile dwell on low cycle fatigue of cast superalloy Inconel 792-5A at 800 C

English Title

Effect of tensile dwell on low cycle fatigue of cast superalloy Inconel 792-5A at 800 C

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

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.

English abstract

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.

Keywords

nickle base superalloy, elevated temperatures, low cycle fatigue, dwells

Key words in English

nickle base superalloy, elevated temperatures, low cycle fatigue, dwells

Authors

ŠMÍD, M.; OBRTLÍK, K.; PETRENEC, M.; POLÁK, J.

RIV year

2013

Released

13.01.2012

Publisher

Trans Tech Publications

Location

Švýcarsko

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Volume

2012

Number

488-489

State

Swiss Confederation

Pages from

735

Pages to

738

Pages count

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"
}