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Life modeling of anisotropic fatigue behavior for a single crystal nickel-base superalloy

  • Beijing Institute of Aeronautical Materials
  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

Strain-controlled low cycle fatigue (LCF) experiments of a second generation single crystal (SC) nickel-base superalloy are carried out to investigate the effect of crystallographic orientations on its LCF life. Further, the life modeling of the SC superalloy is considered by employing the modified Mücke's anisotropic model. The results show that the LCF life of the SC superalloy has a strong crystallographic orientation dependence; the local strain approach fails to predict the fatigue life but the modified Mücke's anisotropic model is able to predict the fatigue life for the SC superalloy at the three characteristic orientations simultaneously.

Original languageEnglish
Pages (from-to)21-27
Number of pages7
JournalInternational Journal of Fatigue
Volume61
DOIs
StatePublished - Apr 2014

Keywords

  • Anisotropic
  • Hill parameters
  • Life modeling
  • Low cycle fatigue
  • Single crystal

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