Author(s)

H. Kanasaki, K. Tsutsumi & Y. Kondo

Abstract

Most of corrosion fatigue tests have been carried out using polished specimens in high temperature water and these data have been used for the evaluation of actual component. Since degradations of surface such as corrosion or cor- rosion pit are induced during long period of operation, the surface of actual component may be different from that of polished specimen. Previous study showed that the fatigue strength of pre-corroded specimen of carbon steel was substantially reduced in oxygenated high temperature water [1]. This kind of effect should be considered for the accurate evaluation of fatigue strength of actual component. Strain-controlled fatigue tests on carbon steel were carried out in 290°C water with 8ppm dissolved oxygen. Test specimens were

Keywords