Abstract
Type 316L stainless steel exhibits superior corrosion resistance in aqueous environments, due to a protective passive film formed on the surface. Therefore, the stainless steel is used in diverse fields. However, during cyclic deformation of the steel in environments that contain chloride ions, the breakdown of the passive film on the steel surface occurs around stress concentration zones, causing the anodic dissolution of underlying steel. On the other locations, oxygen reduction reaction mainly occurs as cathodic reaction. Therefore, both anodic and cathodic reactions have to be taken into consideration to examine corrosion related phenomena. However, effects of cathodic reaction still remain unclear. In the present work, cyclic deformation test of Type 316L stainless steel with different cathode areas was performed to clarify effects of cathodic process on corrosion fatigue of the stainless steel.
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