采用动电位极化、电化学阻抗谱和失重试验研究了pH对船体钢在海水中腐蚀行为的影响。结果表明，在pH为6.5~9.5的海水中，1号、2号船体钢的自腐蚀电位在pH=9.5时稍高，在其他pH下差别不大。随海水pH的增加，两种钢的腐蚀电流密度均逐渐减小，腐蚀速率下降，腐蚀速率与pH之间呈近似线性关系。

Potentiodynamic polarization technique, electrochemical impedance spectroscopy (EIS) and weight loss methods were employed to study the effect of pH on the corrosion behavior of 1# and 2# hull steels in sea water. The experimental results showed that the corrosion potentials of 1# and 2# steels are a little higher at the pH of 9.5 in the pH scale of 6.5~9.5 , and their corrosion rates decreased almost linearly with increasing pH.