Abstract
Research on through-thickness defects is reported for BS 4360:50D structural steel in air and in seawater; the results of experiments on the propagation of surface-breaking, semi-elliptic flaws under three-point bend loading are also presented. The mechanisms of corrosion fatigue crack growth of through-thickness and semi-elliptic cracks in seawater are considered, and the application of crack growth data to endurance tests on welded cruciform and tubular joints is discussed.
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