Notch shape dependence of fatigue crack extension in equiatomic CrMnFeCoNi high-entropy alloy

Kai Suzuki, Shigeru Hamada, Motomichi Koyama, Kaneaki Tsuzaki, Hiroshi Noguchi

Research output: Contribution to journalArticlepeer-review

Abstract

Fatigue tests were conducted on an equiatomic CrMnFeCoNi high-entropy alloy with three different micro-stress concentration sources. A fatigue crack behavior analysis using a replica of a specimen surface, fractographic analysis in a fracture surface, fatigue crack shape analysis, and strain analysis under the fracture surface were performed. It was found that the fatigue crack extension mode was transited by the severity of the strain concentration from the damage accumulation mode to the plastic deformation mode.

Original languageEnglish
Article number106481
JournalInternational Journal of Fatigue
Volume153
DOIs
Publication statusPublished - Dec 2021

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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