WIT Press


Effect Of Pits On Fatigue Strength Of Carbon Steel In Oxygenated High Temperature Water

Price

Free (open access)

Paper DOI

10.2495/LD960631

Volume

13

Pages

8

Published

1996

Size

764 kb

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

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