Effects of Magnetic Fields on Microbiologically Influenced Corrosion of 304 Stainless Steel

被引:44
|
作者
Zheng, Bijuan [1 ]
Li, Kejuan [1 ]
Liu, Hongfang [1 ]
Gu, Tingyue [2 ]
机构
[1] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, Wuhan 430074, Peoples R China
[2] Ohio Univ, Dept Chem & Biomol Engn, Inst Corros & Multiphase Technol, Athens, OH 45701 USA
基金
中国国家自然科学基金;
关键词
SULFATE-REDUCING BACTERIA; ANODIC-DISSOLUTION; ESCHERICHIA-COLI; BEHAVIOR; STEEL; IRON; PASSIVATION; BIOFILM;
D O I
10.1021/ie402235j
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The effects of magnetic fields (MFs) on the corrosion of 304 stainless steel (SS304) caused by oil-field sulfatereducing bacteria (SRB) were investigated. Experimental data showed that the MF lowered the population of planktonic SRB by almost 4 orders of magnitude and delayed the formation of SRB biofilms on the SS304 coupons. The mass losses and surface images of the coupons indicated that the application of an MF considerably reduced the pitting corrosion of SS304. EDX and XPS analyses of the coupon surfaces demonstrated that the main corrosion products without an MF and with 2 and 4 mT MFs were FeS, FeO, and Fe2O3, respectively. The application of MFs could be an environmentally friendly method for mitigating microbiologically influenced corrosion (MIC) on SS304.
引用
收藏
页码:48 / 54
页数:7
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