CORROSION BEHAVIOR OF N80 #OIL PIPE STEEL IN ACID SOULTION WITH H2S
N80#油管钢在含H2S酸性溶液中的腐蚀行为

The corrosion behavior of N80 # oil pipe steel in acid solution with H 2S was studied by means of stable polarization, anodic linear potential sweep and a.c. impedance. The results showed that the decrease of pH value and the increase of the concentration of H 2S increased the corrosion rate of N80# oil pipe steel. The adsorptive intermediate product was Fe(OH) ad in the process of the dissolution of N80# oil pipe steel in HAc NaAc without H 2S. When H 2S was added to the acid solution,the adsorptive intermediate product was Fe(SH) ad .