The effects of fluoride ion on the crevice corrosion for a FPM/metal of a type 304 stainless steel were studied in terms of repassivation potential (ER) measurements in neutral NaCl/NaF mixed solutions at 303K. It was found that the ER values shifted to the noble direction by presence of F-, sufficient concentrations of which promoted uniform dissolution of the nobly polarized stainless steel. There was a good correlation between ER and Vcrev.
