Corrosion behavior of X80 pipeline steel in the presence of Brevibacterium halotolerans in Beijing soil

被引:22
作者
Li, Zhong [1 ]
Wan, Hongxia [2 ]
Song, Dongdong [3 ]
Liu, Xiaodong [4 ]
Li, Ziyu [4 ]
Du, Cuiwei [4 ]
机构
[1] Ohio Univ, Inst Corros & Multiphase Technol, Dept Chem & Biomol Engn, Athens, OH 45701 USA
[2] China Univ Petr, Dept Mat Sci & Engn, Beijing Key Lab Failure Corros & Protect Oil Gas, Beijing 102249, Peoples R China
[3] Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Guangdong, Peoples R China
[4] Univ Sci & Technol Beijing, Corros & Protect Ctr, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
X80 pipeline steel; Pitting corrosion; Biofilm; Brevibacterium halotolerans; Nitrate-reducing bacteria (NRB); SULFATE-REDUCING BACTERIA; IRON-OXIDIZING BACTERIA; MICROBIOLOGICALLY INFLUENCED CORROSION; MICROBIALLY INFLUENCED CORROSION; CARBON-STEEL; MILD-STEEL; ELECTROCHEMICAL NOISE; PITTING CORROSION; STAINLESS-STEELS; INHIBITION;
D O I
10.1016/j.bioelechem.2018.12.001
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In this study, the corrosion behavior of X80 pipeline steel in the presence of Brevibacterium halotolerans (B. halotolerans) was investigated by surface analysis and electrochemical measurements. Results show that B. halotolerans can attach to the surface of X80 steel, and the entire surface is covered with B. halotolerans. The corrosion products induced by B. halotolerans were FeOOH, Fe2O3 and FeSO4. X80 steel corrosion was accelerated in the presence of B. halotolerans and was susceptible to pitting corrosion. The formation of pitting corrosion could be due that the B. halotolerans oxidization of elemental iron in X80 steel to either obtain electrons from the reduction of nitrate in the underlying biofilm or in the damaged corrosion product film. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码:121 / 129
页数:9
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