Effect of static pre-strain on low cycle fatigue life of AISI 316L stainless steel

Tomohiro Ido, Jun Komotori

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to clarify the effects of a great amount of static pre-strain (1/4 cycle) on fatigue life of AISI 316L stainless steel, strain controlled low cycle fatigue tests were carried out. Hardness and fracture ductility of specimens were measured. Results showed that in the case of a specimen with Δεp=0.01, static pre-strain of 0.16 noticeably reduced a fatigue life. To clarify the reasons for the decrease in fatigue life with pre-strain, the maximum stress amplitude of the hysteresis loop was measured. In the case of the specimen with Δεp=0.01, work softening was observed in the early stage of fatigue life. On the other hand, when the cyclic plastic strain ranges were Δεp=0.10, no softening was observed. These results suggest that work softening is significant in determining the fatigue life of the specimens at a relatively low level of applied cyclic strain.

Original languageEnglish
Title of host publicationFracture and Strength of Solids VII
PublisherTrans Tech Publications Ltd
Pages65-69
Number of pages5
ISBN (Print)9780878492107
DOIs
Publication statusPublished - 2011 Jan 1

Publication series

NameKey Engineering Materials
Volume462-463
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Fracture ductility
  • Hardness
  • Low cycle fatigue
  • Pre-strain
  • Stainless steel

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Ido, T., & Komotori, J. (2011). Effect of static pre-strain on low cycle fatigue life of AISI 316L stainless steel. In Fracture and Strength of Solids VII (pp. 65-69). (Key Engineering Materials; Vol. 462-463). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.462-463.65