An Experiment on the Estimation of Corrosion Fatigue Strength

Abstract

The method of estimation of the corrosion fatigue strength was proposed on the occasion of loading the constant stress, or varying stress.
As a result, the estimated corrosion fatigue strength was considerably corresponded to the experimental results under the experimental conditions within the limit of this paper. Especially, when the constant stress was loaded, it was founded that on the corrosion fatigue test by combination the low carbon steel with the 3% saline solution, in spite of the dimension of the specimen, loading condition, and repeated rate, the estimated corrosion fatigue strength was expressed by
σ_ac=σ_a/1+2.16×10^-4⋅N_f^0.75/f^0.39
, when σ_a is the fatigue strength in air, f is the repeated rate (cpm) .