Abstract
The derivation of a model of environmentally-assisted cracking for ductile alloys in aqueous environments is described and applied to the formulation of life prediction codes for corrosion fatigue of austenitic stainless steel and low-alloy steels in 288°C water. These model predictions are compared with observed corrosion fatigue (and stress corrosion) data. It is concluded that the model more accurately predicts the effect of a wide range of material, environment and stressing conditions on crack propagation than does, e.g., the current (1980) ASME XI code.
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