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.
|Pages (from-to)||p 227-232|
|Journal||Mechanical and corrosion properties. Series A, Key engineering materials|
|Publication status||Published - 1991|
|Event||Proceedings of the KSME/JSME Joint Conference - Seoul, South Korea|
Duration: 1990 Jul 6 → 1990 Jul 7
ASJC Scopus subject areas