将碳钢试样置于青岛潮差区-全浸区进行了为期30 d的海洋环境暴露试验。结果表明，暴露30 d时，试样在这两个区域的最大电位差约为100 mV，极化特征明显；全浸区试样的电流净输出，随着试样高度的增加，输出电流增大；潮差区试样的电流净流入，随着保护试样高度的增加，输入电流增大；涨潮时试样的电流绝对值大于落潮时试样的；全浸区试样的腐蚀速率均高于潮差区试样的，全浸区试样的腐蚀峰值出现在均潮位线下方，潮差区试样的腐蚀峰值出现在中潮位区域。

Carbon steel samples were placed in Qingdao tidal range-full immersion area for a 30-day marine environment exposure test. The results show that the maximum potential difference between the samples in these two regions was about 100 mV when exposed for 30 days, and the polarization characteristics were obvious. The net current output of the sample in the full immersion increased with the increase of the sample height; the net current inflow of the sample in the tidal range zone increased with the increase of the protection sample height. The absolute value of the current of the sample at high tide was greater than that of the sample at low tide; the corrosion rate of samples in the full immersion zone was higher than that in the tidal range. The corrosion peak of the sample in the full immersion zone appeard below the tidal level line, and the corrosion peak of the sample in the tidal range appeard in the middle tide zone.