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对埋藏在三峡土壤腐蚀试验站已３３年的２种低碳钢材料进行了分析。结果表明，试件以局部腐蚀为主要特征。腐蚀产物主要由ＦｅＯ（ＯＨ）、ＦｅＣＯ３、Ｆｅ２Ｏ３、Ｆｅ３Ｏ４及铁的硫化物和一些铁盐所组成。焊缝及钢中的夹杂导致局部腐蚀的发生。
Two kinds of low carbon steel materials which have been buried in the Three Gorges Soil Corrosion Test Station for 33 years have been analyzed. The results show that the specimen is mainly characterized by local corrosion. The corrosion products are mainly composed of FeO (OH), FeCO3, Fe2O3, Fe3O4 and iron sulfide and some iron salts. Inclusion of weld and steel causes localized corrosion.