The passivity of ferritic (Fe-18% Cr) stainless steel in methanolic solutions

An experimental study to define the active-passive behaviour of a ferritic (Fe-18%Cr) stainless steel in methanol, as a function of the concentration of Cl- ions and acidity level, is reported. The addition of water was considered to be an inhibitor capable of reinforcing the passive film of stainless steel. The effects of acidity and of the addition of water on the anodic and cathodic behaviour of Ni, Mo, Fe and The Fe-18%Cr alloy are reported. © 1981 Chapman and Hall Ltd