抄録
The effect of partial unloading on the corrosion fatigue strength in water was investigated on the notched specimens of SNCM439 steel quenched and tempered at 473K.
The corrosion fatigue strength was markedly increased by the partial unloading method. This fact may be explained by the decrease of tensile stress at the notch root surface which suppresses the destruction of protective film due to repeating slips in the material and prevent the corrosion reaction.
