Combined effect of surface morphology and residual stress induced by fine particle and shot peening on the fatigue limit for carburized steels

Shoichi Kikuchi, Kenta Minamizawa, Jinta Arakawa, Hiroyuki Akebono, Shogo Takesue, Mamoru Hayakawa

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The combined effect of surface morphology and residual stress induced by peening on the fatigue limit of carburized steels were quantitatively elucidated to precisely estimate the fatigue limit. The fatigue limit of carburized steels treated with peening increased with decreasing the size of surface dents induced by peening, and the effect of residual stress on the fatigue limit was enhanced with a decrease in their size. Additionally, the maximum fatigue limit (1157 MPa) of carburized steels without surface dents, which is higher than those of steels treated with peening, could be estimated according to the modified Goodman diagram.

Original languageEnglish
Article number107441
JournalInternational Journal of Fatigue
Volume168
DOIs
Publication statusPublished - Mar 2023

Keywords

  • Carburizing
  • Compressive residual stress
  • Fatigue limit estimation
  • Shot peening
  • Surface dent

ASJC Scopus subject areas

  • Modelling and Simulation
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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