Effects of hydrogen environment on fatigue characteristics of 18Cr-8Ni stainless steel

K. Kawamoto, Y. Aoki, Y. Oda, T. Yoshimura, H. Noguchi, K. Higashida

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

1 Citation (Scopus)

Abstract

In order to clarify the effects of hydrogen on the fatigue characteristics of an austenitic stainless steel, bending fatigue tests were conducted in air, in a hydrogen gas and in a nitrogen gas. Main results obtained are as follows. Effects of hydrogen gas environment are not clearly seen on the strain range fatigue life diagram, because there are opposite effects to crack propagation and to crack initiation; accelerates crack propagation, but retards crack initiation. Striation spacing or in-situ observation confirms the acceleration. The retardation seems to be attributed to the absence of oxygen or water vapor in the hydrogen gas.

Original languageEnglish
Title of host publicationMaterials Structure and Micromechanics of Fracture IV, MSMF-4 - Proceedings of the Fourth International Conference on Materials Structure and Micromechanics of Fracture
Pages283-286
Number of pages4
Publication statusPublished - Dec 1 2005
Event4th International Conference on Materials Structure and Micromechanics of Fracture, MSMF-4 - Brno, Czech Republic
Duration: Jun 23 2004Jun 25 2004

Publication series

NameMaterials Science Forum
Volume482
ISSN (Print)0255-5476

Other

Other4th International Conference on Materials Structure and Micromechanics of Fracture, MSMF-4
CountryCzech Republic
CityBrno
Period6/23/046/25/04

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Kawamoto, K., Aoki, Y., Oda, Y., Yoshimura, T., Noguchi, H., & Higashida, K. (2005). Effects of hydrogen environment on fatigue characteristics of 18Cr-8Ni stainless steel. In Materials Structure and Micromechanics of Fracture IV, MSMF-4 - Proceedings of the Fourth International Conference on Materials Structure and Micromechanics of Fracture (pp. 283-286). (Materials Science Forum; Vol. 482).