Evaluation of notched fatigue strength at elevated temperature by linear notch mechanics

Qiang Chen, Norio Kawagoishi, Hironobu Nisitani

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The notched fatigue strength of nickel-base superalloy Inconel 718 has been investigated under rotating bending loading at room temperature and 500 °C in air. The applicability of linear notch mechanics to the evaluation of notched fatigue strength at elevated temperature was assessed in terms of the fatigue limit for crack initiation and that for crack growth. The effect of temperature on the fatigue strength and notch sensitivity of Inconel 718 was examined. The results were discussed from the viewpoints of the softening of matrix and surface oxidation at elevated temperature.

Original languageEnglish
Pages (from-to)925-931
Number of pages7
JournalInternational Journal of Fatigue
Volume21
Issue number9
DOIs
Publication statusPublished - Jan 1 1999

Fingerprint

Fatigue Strength
Notch
Mechanics
Evaluation
Fatigue Limit
Superalloy
Temperature
Crack Initiation
Crack Growth
Softening
Nickel
Superalloys
Crack initiation
Oxidation
Crack propagation
Rotating
Fatigue of materials
Fatigue strength
Air

All Science Journal Classification (ASJC) codes

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

Cite this

Evaluation of notched fatigue strength at elevated temperature by linear notch mechanics. / Chen, Qiang; Kawagoishi, Norio; Nisitani, Hironobu.

In: International Journal of Fatigue, Vol. 21, No. 9, 01.01.1999, p. 925-931.

Research output: Contribution to journalArticle

Chen, Qiang ; Kawagoishi, Norio ; Nisitani, Hironobu. / Evaluation of notched fatigue strength at elevated temperature by linear notch mechanics. In: International Journal of Fatigue. 1999 ; Vol. 21, No. 9. pp. 925-931.
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