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 journalArticle

25 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 1 2002

Fingerprint

Fatigue Crack Growth
Single Crystal
Fatigue crack propagation
Single crystals
Scanning electron microscopy
Atomic Force Microscope
Kinematic Model
Scanning Electron Microscope
Crack Tip
Unloading
Crack tips
Crystal orientation
Slip
Fatigue
Crack
Kinematics
Microscopes
Electron microscopes
Fatigue of materials
Cracks

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Modelling and Simulation
  • Mechanics of Materials

Cite this

AFM and SEM observation on mechanism of fatigue crack growth in an Fe-Si single crystal. / Oda, Y.; Furuya, Y.; Noguchi, H.; Higashida, K.

In: International Journal of Fracture, Vol. 113, No. 3, 01.02.2002, p. 213-231.

Research output: Contribution to journalArticle

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