Characteristic and Mechanistic Investigation of Stress-Assisted Microbiologically Influenced Corrosion of X80 Steel in Near-Neutral Solutions

被引：5
|
作者：
Guo, Huihua [1 ]
Zhong, Rui [2 ]
Liu, Bo [1 ]
Yang, Jike [1 ]
Liu, Zhiyong [1 ,3 ]
Du, Cuiwei [1 ,3 ,4 ]
Li, Xiaogang [1 ,3 ,4 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China
[3] Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China
[4] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing 100083, Peoples R China
来源：
MATERIALS | 2023年 / 16卷 / 01期
关键词：
SRB; MIC; X80; FIB; SULFATE-REDUCING BACTERIA; PIPELINE STEEL; CARBON-STEEL; ELECTRON-TRANSFER; BEHAVIOR;
D O I：
10.3390/ma16010390
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 Fe3O4 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.
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页数：19
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