A new life extension method for high cycle fatigue using micro-martensitic transformation in an austenitic stainless steel

T. H. Myeong, Y. Yamabayashi, M. Shimojo, Y. Higo

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Most of the conventional strengthening methods for metals and alloys such as work hardening, precipitation hardening, cause a decrease in ductility and are not very effective for cyclic loading. In this study, a new strengthening method, which is effective for high cycle fatigue, has been developed. The intersections of dislocations in a stainless steel are freezed by very fine martensite particles, which are supposed to suppress dislocation motion at low stress amplitudes. Fatigue life in a high cycle regime increased > 60 times, and no decrease in ductility was observed in tensile tests, as compared to a work-hardened stainless steel.

Original languageEnglish
Pages (from-to)S69-S73
JournalInternational Journal of Fatigue
Volume19
Issue numberSUPPL.1
Publication statusPublished - 1997 Dec 1

    Fingerprint

Keywords

  • Austenitic stainless steel
  • Cyclic plastic deformation
  • Fatigue life extension
  • Martensitic transformation

ASJC Scopus subject areas

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

Cite this