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Accelerating role of microbial film on soil corrosion of pipeline steel
International Journal of Pressure Vessels and Piping ( IF 3.0 ) Pub Date : 2021-03-31 , DOI: 10.1016/j.ijpvp.2021.104395
Zhaofen Zhou , Tangqing Wu , Meng Liu , Binbin Wang , Cong Li , Fucheng Yin

In this paper, the effects of original corrosion product and microbial film on soil corrosion of X80 steel were studied using electrochemical measurements, scanning electron microscope and X-ray photoelectron spectroscopy. The original corrosion product enhances the corrosion rate and improves the local corrosion sensitivity of the steel, while the positive effect of the microbial film is more significant than that of the original corrosion product and can be maintained until the end of the experiment. The effects of original corrosion product and microbial film on cathode polarization are more prominent than that on anode polarization. The possible corrosion mechanisms of pipeline steel under the influence of corrosion product and microbial film were discussed in the paper.



中文翻译:

微生物膜对管道钢土壤腐蚀的促进作用

本文采用电化学测量,扫描电子显微镜和X射线光电子能谱研究了原始腐蚀产物和微生物膜对X80钢土壤腐蚀的影响。原始腐蚀产物提高了腐蚀速率并提高了钢的局部腐蚀敏感性,而微生物膜的积极作用要比原始腐蚀产物的显着,并且可以保持到实验结束。原始腐蚀产物和微生物膜对阴极极化的影响比对阳极极化的影响更为突出。讨论了腐蚀产物和微生物膜影响下管线钢可能的腐蚀机理。

更新日期:2021-03-31
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