Synergistic effects of deposits and sulfate reducing bacteria on the corrosion of carbon steel

被引：76
作者：
Yang, J. [1 ,2 ]
Wang, Z. B. [1 ]
Qiao, Y. X. [3 ]
Zheng, Y. G. [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
[3] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 199卷
关键词：
Carbon steel; Under-deposit corrosion; Microbiologically influenced corrosion; Sulfate reducing bacteria; Synergistic effect; MICROBIOLOGICALLY INFLUENCED CORROSION; OIL; IRON; BEHAVIOR; ENVIRONMENT; INHIBITORS; MECHANISM; PIPELINES; SEAWATER; CHLORIDE;
D O I：
10.1016/j.corsci.2022.110210
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The synergistic effects of deposits and sulfate reducing bacteria (SRB) on the corrosion of a carbon steel are clarified by purposely designing four groups of experiments. The weight loss combined with electrochemical measurements and the surface profiling determine quantitatively that deposits and SRB contribute synergistically similar to 75% and similar to 49% to uniform and localized corrosion, respectively. Based on the experimental evidence, the synergism is explained in terms of the promotion effects of SRB on under-deposit corrosion (UDC) due to unevenly distributed iron sulfides produced by SRB and the acceleration effects of deposits on SRB corrosion resulting from UDC-induced accumulation of SRB.
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页数：11
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