Effects of hydrogen gas Environment on non-propagation phenomena of a type 304 austenitic stainless steel

Y. Aoki, T. Matsuyama, Y. Oda, H. Noguchi, K. Higashida

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In order to investigate the hydrogen gas effect on non-propagation phenomena of a type 304 austenitic stainless steel, fatigue tests with in-situ observation using a Scanning Laser Microscope were performed in air, in 0.18MPa hydrogen gas and in 0.18MPa nitrogen gas. A nonpropagating crack was observed during the fatigue test in air. At almost the same stress level of non-propagating in air, non-propagating cracks were also observed in fatigue tests in hydrogen and in nitrogen. Stress level of the non-propagation is not sufficiently different in the three environments. However, the process up to non-propagation differs from each other, for example, the crack path and debris.

Original languageEnglish
Pages (from-to)927-932
Number of pages6
JournalKey Engineering Materials
Volume297-300 II
Publication statusPublished - Dec 1 2005

All Science Journal Classification (ASJC) codes

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

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