用稳态极化法、阳极动电位扫描法和交流阻抗法研究了酸性溶液中pH值和H2S的浓度 对N80#油管钢腐蚀行为的影响.结果表明：随着溶液pH值的减小、H2S浓度的增大N80#油 管钢的腐蚀速率加快；HAcNaAc体系中无H2S时，油管钢在活性溶解过程中生成的吸附性 中间产物是Fe(OH)ad，而加入H2S后，则生成了另一种吸附性中间产物—Fe(SH) ad.
The corrosion behavior of N80# oil pipe steel in acid solution with H2S 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 increa se of the concentration of H2S increased the corrosion rate of N80# oil pipe s teel. The adsorptive intermediate product was Fe(OH)ad in the process of t he dissolution of N80# oil pipe steel in HAcNaAc without H2S. When H2S was added to the acid solution,the adsorptive intermediate product was Fe(SH)ad .
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