OS1004 水素環境での極低周波数域におけるS10Cの疲労き裂進展挙動

Translated title of the contribution: OS1004 Fatigue crack growth characteristic under hydrogen atmosphere in an ultra-low frequency region in S10C

大西 洋輔, 西本 篤史, 佐々木 大輔, 小山 元道, 濱田 繁, 野口 博司

Research output: Contribution to journalArticle

Abstract

In order to clarify an influence of hydrogen on the fatigue crack propagation in ultra-low frequency region, we investigated the frequency dependence of the crack propagation rate of S10C in hydrogen and nitrogen atmosphere. In the hydrogen atmosphere, crack propagation rate decreased with decrease in frequency. In particular, the reduction in crack propagation rate was markedly low in the ultra-low frequency (0.001 Hz). However, crack propagation rate in the nitrogen atmosphere also decreased in the ultra-low frequency region. Hence, we concluded that the decrease in crack propagation rate was concluded to stem from carbon diffusion as well as hydrogen diffusion.
Translated title of the contributionOS1004 Fatigue crack growth characteristic under hydrogen atmosphere in an ultra-low frequency region in S10C
Original languageJapanese
Pages (from-to)_OS1004-1_-_OS1004-3_
JournalM&M材料力学カンファレンス
Volume2014
Issue number0
DOIs
Publication statusPublished - 2014

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