抄録
The corrosion behavior of Type 304 SS in formic acid was investigated by measuring the corrosion weight loss, the polarization curve and the impedance at the steel-solution interface. The results are summarized as follows. (1) The corrosion rate of the steel was found to change with the remarkable dependence on the concentration of formic acid and the temperature. (2) The corrosion potential (Ecorr) showed a linear relationship against pH of formic acid solution, and the cathodic reaction was approximately first order with respect to the activity of proton. (3) The selective corrosion dissolution of Fe, Cr and Ni of this steel was not observed.
