Abstract
Corrosion fatigue tests were carried out in the solution of NaCl at -5, 20, and 70°C. The corrosion effect k, which is the ratio of the fatigue strength in air to the one under corrosion at the same cycles, is indicated by k=1+Ae-B/T, by using the absolute temperature T of the corrosive solution. Further, the corrosion fatigue strength σC is given by σC=σB×A'eB'E, where σB is the ultimate tensile strength and E is the potential vs. saturated calomel cell. It may be concluded that the corrosion fatigue strength is decided by the intensity of corrosion and the strength of materials and also by the notch sensitivity of corrosion cracks.
