利用自制模拟土壤腐蚀试验装置通过电化学测试技术研究了Q235钢在不同含水量土壤中的腐蚀行为。给出了不同土壤含水量条件下钢的自然腐蚀电位Ecorr变化以及对应的极化曲线。结果表明，随土壤含水量的增加，Q235钢在模拟土壤中的自然腐蚀电位逐渐降低; 土壤含水量对金属土壤腐蚀速率影响较大，在一定范围内，腐蚀速率随含水量增大而增大，并在含水量约28%时达到最大值。

The influence of water content in soil on corrosion behavior of Q235 steel was studied by electrochemical techniques using a self-made simulated soil corrosion experimental device. The change of natural corrosion potential and the corresponding polarization curves with different soil water contents were tested. The results indicate that the natural corrosion potential of Q235 steel in simulated soil decreased with the increase of water content; and the soil water content also had a great effect on the soil corrosion rate which increased with the water content in certain extent and reached its maximum when the water content was about 28%.