ORGANIC-COMPOUNDS AS EFFECTIVE INHIBITORS FOR HYDROGEN PERMEATION OF TYPE-1010 STEEL

Hydrogen permeation and corrosion inhibition characteristics of severa l organic compounds were studied on a type 1010 (UNS G10100) steel mem brane in 0.5 M hydrochloric acid (HCl), Tafel extrapolation and linear polarization methods were used to estimate the corrosion rate, while the Devanathan-Stachurski technique was used to determine the hydrogen permeation rate. A simple corrosion model was used to correlate inhib itor concentration to its inhibiting efficiency. Maximum corrosion red uction and hydrogen permeation inhibiting efficiencies were measured a s 82% and 98%, respectively.