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

T. H. Myeong, Y. Yamabayashi, Masayuki 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
JournalInternational Journal of Fatigue
Volume19
Issue numberSUPPL.1
Publication statusPublished - 1997
Externally publishedYes

Fingerprint

Stainless Steel
Martensitic transformations
Austenitic stainless steel
Ductility
Stainless steel
Fatigue of materials
Age hardening
Strengthening (metal)
Strain hardening
Martensite
Metals

Keywords

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

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

A new life extension method for high cycle fatigue using micro-martensitic transformation in an austenitic stainless steel. / Myeong, T. H.; Yamabayashi, Y.; Shimojo, Masayuki; Higo, Y.

In: International Journal of Fatigue, Vol. 19, No. SUPPL.1, 1997.

Research output: Contribution to journalArticle

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AU - Higo, Y.

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