Loading-frequency effects on fatigue crack growth behavior of a low carbon steel JIS S10C in hydrogen gas environment

Hide Aki Nishikawa, Yasuji Oda, Hiroshi Noguchi

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4 Citations (Scopus)

Abstract

In order to clarify the loading-frequency effect on the fatigue crack growth behavior of a low carbon steel JIS S10C in hydrogen gas environment, fully reversed bending fatigue tests were carried out. The main obtained results are as follows. Loading-frequency effect on FCG reveals complex behavior; that is, not only acceleration but also deceleration even in the same range of low loadingfrequency. Slight acceleration appears in the low growth rate range where the ductile fracture mode is predominant. Deceleration appears due to the transition behavior from quasi-cleavage fracture mode with a higher growth rate to ductile one with a lower growth rate. This shows that lowering the load-frequency does not necessarily lead dangerous fatigue crack growth.

Original languageEnglish
Pages (from-to)1615-1623
Number of pages9
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume75
Issue number759
DOIs
Publication statusPublished - Nov 2009

All Science Journal Classification (ASJC) codes

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

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