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.

引用

页数：19

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