X65 pipeline steel is widely used in the field of offshore oil and gas exploitation due to its excellent performance. However, due to the complex environment in the ocean, X65 pipeline steel is faced with a great risk of microbial corrosion failure. Therefore, it is of great significance to study the corrosion mechanism of X65 pipeline steel by microorganisms. In this paper, the corrosion effect of () secreting phenazine compounds on X65 pipeline steel was studied by the weight loss method, biofilm scanning electron microscopy analysis, surface corrosion morphology observation, electrochemical testing and medium pH test corrosion products. The results showed that the inoculation of accelerated the corrosion of X65 steel. After knocking out the and genes that regulate the synthesis of PYO, can still produce biofilms on the surface of X65 steel consistent with the morphology of wild-type , but the corrosion of X65 steel is significantly reduced. It is proved that PYO plays an important role in the corrosion process of on steel.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11123138 | PMC |
| http://dx.doi.org/10.3390/ma17102428 | DOI Listing |
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