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The deleterious effect of an aqueous environment on fatigue crack initiation and propagation in metals and alloys has been observed for a long time [1-5]. The applied electrochemical potential has a large inuence on localized corrosion reactions and, consequently, on corrosion fatigue (CF) damage. These complex effects are used for cathodic protection in offshore structures. Nevertheless, CF is inuenced by various mechanical, chemical, and microstructural parameters that interact locally. Even if anodic dissolution versus hydrogen effects are known to occur during CF, the damage mechanisms are still controversial and fatigue lifetime predictions are still empirical. |
