Studies have been made on the influence of trapezoidal stress wave forms on low cycle corrosion fatigue strength. The electrode potential of the specimens has been observed against the saturated calomel electrode during cycles. The corrosion fatigue strength is much affected by the stress wave forms. The stressless time, the varying stress time and the maximum stress time in one cycle show each effect on the life of specimens, and the deleterious effect of the varying stress time is the most conspicuous. The potential variation during one cycle has close relations with the lives
