Potential resistance to transgranular fatigue crack growth of Fe-C alloy with a supersaturated carbon clarified through FIB micro-notching technique

Bochuan Li, Motomichi Koyama, Eisaku Sakurada, Nobuyuki Yoshimura, Kohsaku Ushioda, Hiroshi Noguchi

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The threshold stress intensity factor range (ΔKth) of water-quenched Fe-0.017C (wt.%) fully ferritic steel was determined using room-temperature fatigue tests on micro-notched specimens. The experimentally determined ΔKth was approximately 40.5% higher than conventionally predicted results. This extraordinary resistance to transgranluar fatigue crack propagation likely results from the strain-age hardening.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalInternational Journal of Fatigue
Volume87
DOIs
Publication statusPublished - 2016 Jun 1
Externally publishedYes

Keywords

  • Ferritic steel
  • Strain-age hardening
  • Threshold stress intensity factor range
  • Transgranluar fatigue crack

ASJC Scopus subject areas

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

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