Surface crack growth behaviour in corrosion fatigue of off-shore structural steel

Jong Gi Lee, Tetsuo Shoji, Hideaki Takahashi, Jae Kyoo Lim, Se Hi Chung

Research output: Contribution to journalConference articlepeer-review

Abstract

There is a high technical demand for evaluation of crack growth characteristics of surface cracks in seawater environments in order to ensure structural integrity of offshore structures. This study was conducted to investigate the environmental effect on fatigue crack growth of surface cracks in SS41, SM53B and HT80 steels under free corrosion and cathodic protection conditions (-0.9 V vs Ag/Agcl) in synthetic seawater. In fatigue tests of SS41 and HT80 steel, fatigue crack growth rate decreased at the cathodic protection potential in comparison with that of the free corrosion potential. In SM53B steel, the opposite behaviour was observed.

Original languageEnglish
Pages (from-to)p 227-232
JournalMechanical and corrosion properties. Series A, Key engineering materials
Volume51-52
Publication statusPublished - 1991
Externally publishedYes
EventProceedings of the KSME/JSME Joint Conference - Seoul, South Korea
Duration: 1990 Jul 61990 Jul 7

ASJC Scopus subject areas

  • Engineering(all)

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