1162 Corrosion Fatigue CF

Corrosion fatigue differs from SCC in that a fluctuating cyclic load exists while the component is in contact with an aggressive environment. A more alarming difference between SCC and CF is that the combination of cyclic stress and environment shows no specificity and CF failure of a material may occur over a wide range of stress levels and in a variety of different environments. Other features associated with CF include the transgranular nature of fracture, improved resistance to CF with increase in corrosion resistance of the material, and the lack of relationship between corrosion fatigue strength and tensile strength.

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