Study on Microbial Analysis and Surface Characterization of SABIC Carbon Steel Corrosion in Soils of Different Moisture Levels

The effect of three different types of soil in Saudi Arabia on SABIC carbon steel grade X60 (SCSX60) specimens was investigated. The results showed that the environment effect of different condition was very clear, indicating that the studied soils were very corrosive toward SCSX60 specimens. The composition and morphology of corrosion products were different in the tested soil based on moisture content and immersion period. In addition, the results showed that bacteria play a significant role in the corrosion of SCSX60. The morphologies of corrosion products were characterized using scanning electron microscopy (SEM) to further elucidate the complex systems found in the studied soil.