Note on Autoradiography – Its use in Examining the Inhibition of Corrosion

Abstract

Radioactive tracers have been employed by several workers as a means of elucidating the mechanism by which nonoxidising anions, such as benzoate and phosphate, inhibit the corrosion of iron and steel. In each of these cases, the quantity of inhibitive anion taken up by a metallic specimen during inhibition was measured, but no attempts were made to determine the surface distribution of the inhibitor. Results of the work quoted above have been taken by some workers as evidence that inhibition of corrosion is brought about by surface deposition of insoluble ferric salts of inhibitive anions.