近中性溶液中X80钢应力辅助微生物影响腐蚀的特性及机理研究
Characteristic and Mechanistic Investigation of Stress-Assisted Microbiologically Influenced Corrosion of X80 Steel in Near-Neutral Solutions.
作者信息
Guo Huihua, Zhong Rui, Liu Bo, Yang Jike, Liu Zhiyong, Du Cuiwei, Li Xiaogang
机构信息
Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China.
出版信息
Materials (Basel). 2022 Dec 31;16(1):390. doi: 10.3390/ma16010390.
The behavior and mechanisms of the stress-assisted microbiologically influenced corrosion (MIC) of X80 pipeline steel induced by sulfate-reducing bacteria (SRB) were investigated using focused ion beam-scanning electron microscopy (FIB). Electrochemical results show that SRB and stress have a synergistic effect on the corrosion of X80 steel. SRB accelerated the transformation of FeO into iron-sulfur compounds and may have caused the film breakage of X80 steel products. The obtained FIB results provide direct evidence that SRB promotes the corrosion of X80 steel.
采用聚焦离子束扫描电子显微镜（FIB）研究了硫酸盐还原菌（SRB）诱导的X80管线钢应力辅助微生物影响腐蚀（MIC）的行为及机制。电化学结果表明，SRB与应力对X80钢的腐蚀具有协同作用。SRB加速了FeO向铁硫化合物的转变，可能导致了X80钢产品的膜破裂。获得的FIB结果提供了直接证据，表明SRB促进了X80钢的腐蚀。
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