Corrosive Electrochemical Behavior of Carbon Steel in Microbiological Medium

Authors

Jing LIU, Institute of Nuclear Energy Technology(INET),Tsinghua University,Beijing 100084,China;
Hong-bo FAN, Chem.Dept.,Huazhong University of Science and Technology,Wuhan 43007;
Hai-ping XU, Institute of Nuclear Energy Technology(INET),Tsinghua University,Beijing 100084,China;
Jia-shen ZHENG, Chem.Dept.,Huazhong University of Science and Technology,Wuhan 43007;
Li-ming XU, Chem.Dept.,Huazhong University of Science and Technology,Wuhan 43007;
Zong-qiang MAO, Institute of Nuclear Energy Technology(INET),Tsinghua University,Beijing 100084,China;

Corresponding Author

Jing LIU

Abstract

Sulfate_reducing bacteria(SRB)grows and propagates, PH of the solution is dropped from 7.5 to 5.8,and forms the biofilms on carbon steel in culture medium.The micro_environment on the surface of carbon steel is changed under the biofilms,the factors accelerate the formation of the pitting corrosion. When the biofilm on carbon steel is cleaned out,the surface of carbon steel have the non_uniform pitting corrosion. The activity of SRB and the porous structure of biofilms induced the initiation and development of the pitting corrosion of carbon steel.The process of microbiologically induced corrosion(MIC) involves the development of SRB activity,which promotes the permeation of gydrogen into the carbon steel.The relation of the structure of biofilms and corrosion was also studied using electrochemical impedance spectroscopy(EIS).

Keywords

Sulfate_reducing bacteria, Carbon steel, Corrosion, Electrochemical impedance spectroscopy.

DOI Link

https://doi.org/10.61558/2993-074X.1457

Publication Date

2002-05-28

Online Available Date

2002-05-28

Revised Date

2002-05-28

Received Date

2002-05-28

Recommended Citation

Jing LIU, Hong-bo FAN, Hai-ping XU, Jia-shen ZHENG, Li-ming XU, Zong-qiang MAO. Corrosive Electrochemical Behavior of Carbon Steel in Microbiological Medium[J]. Journal of Electrochemistry, 2002 , 8(2): 186-190.
DOI: 10.61558/2993-074X.1457
Available at: https://jelectrochem.xmu.edu.cn/journal/vol8/iss2/9

References

[1]　JavaherdashtiR .AreviewofsomecharacteristicsofMICcausedbysulfate_reducingbacteria:past,presentandfuture[J].Anti_CorrosionMethodsandMaterials,1999,46(3):173～180.

[2]　PostgateJR .TheSulfateReducingBacteria.2 ndedition[M].Cambridge,England:Camb.Univ.press,1984.5～27

[3]　KingRA ,MillerJDA ,SmithJS .Corrosionofmildsteelbyironsulfides[J].Brit.Corros.J .,1973,8:137～141.

[4]　FrankinMJ ,WhiteDC ,IsaacesHS .Pittingcorrosionbybacteriaoncarbonsteel[J].CorrosionScience,1991,32:945～952.

[5]　PostgateJR .TheSulfate_reducingBacteria[M ].Cambridge:1979.9～23.

[6]　LiuHongfang,XuLiming,ZhengJiashen,etal,Astudyonthemethodofidentificationofdifferentkindsofsulfate_reducingbacteria[J].J .HuazhongUniversityofScienceandTechnology,1999,27(6):113～114