Effects of hydrogen gas environment on the extremely low rate fatigue-crack growth behavior from a Small Hole in JIS S10C

Yasuji Oda, Dongsun Lee, Hide Aki Nishikawa, Hiroshi Noguchi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Fully reversed bending fatigue tests were performed on low carbon steel JIS S10C in hydrogen gas and in nitrogen gas at a low pressure. In nitrogen a crack showed almost the same non-propagating behavior as known in air, while in hydrogen a crack continued to propagate even near 10' cycles at the same testing strain range. In hydrogen gas, a crack showed intermittent growth by coalescing with a new micro-crack generated by slip behavior. This implies that hydrogen could reduce the ability of any factor affecting non-propagation.

Original languageEnglish
Pages (from-to)1440-1442
Number of pages3
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume75
Issue number758
DOIs
Publication statusPublished - Oct 2009

All Science Journal Classification (ASJC) codes

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

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