AFM and SEM observation on mechanism of fatigue crack growth in an Fe-Si single crystal

Y. Oda, Y. Furuya, H. Noguchi, K. Higashida

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Fatigue crack growth tests are carried out on sheets of an Fe-3.2% Si single crystal with a cry stallographic orientation appropriate for striation formation. The behaviour of slip near a crack tip during the loading and unloading parts of a fatigue cycle is observed using an Atomic Force Microscope and a Scanning Electron Microscope. The fracture surfaces are also analysed with an AFM and an SEM. The mechanism of fatigue crack growth is discussed based on the observations, and a fundamental kinematic model for fatigue crack growth is proposed. The model gives a reasonable explanation for both the crack and striation formation.

Original languageEnglish
Pages (from-to)213-231
Number of pages19
JournalInternational Journal of Fracture
Volume113
Issue number3
DOIs
Publication statusPublished - Feb 2002

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Modelling and Simulation
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'AFM and SEM observation on mechanism of fatigue crack growth in an Fe-Si single crystal'. Together they form a unique fingerprint.

Cite this