| Variations of Microenvironments with and without SRB for Steel Q 235 under a Simulated Disbonded Coating |
| J. Xu; C. Sun; M. C. Yan; F. H. Wang
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| 2013
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| 发表期刊 | Industrial & Engineering Chemistry Research
 |
| ISSN | 0888-5885
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| 卷号 | 52期号:36页码:12838-12845 |
| 摘要 | Distributions of potential and current and variations of crevice environments are studied in a crevice under a simulated disbonded coating in soil extract solutions (SES) with and without sulfate-reducing bacteria (SRB). Results show that forming of the crevice blocks the penetration of cathodic currents in the crevice and weakens the cathodic polarization of the steel Q 235. The cathodic currents in the presence of SRB are nearly three times more than those without SRB at the same cathodic protective potential, which indicates that SRB increases the energy consumption of the cathodic protection systems. SRB leads to basification of the solution in the crevice. The forming of inner electric field enhances the anionic migration into the crevice. The forming of the reversed potential increases the cathodic current. |
| 部门归属 | [xu, jin
; sun, cheng
; yan, maocheng
; wang, fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, liaoning, peoples r china.
; xu, j (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, liaoning, peoples r china.
; xujin@imr.ac.cn
|
| 关键词 | Sulfate-reducing Bacteria
Cathodic Protection
Carbon-steel
Pipeline
Coatings
Corrosion
Crevice
Biofilm
Polarization
Environment
Underneath
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| URL | 查看原文
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| 语种 | 英语
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/72434
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
J. Xu,C. Sun,M. C. Yan,et al. Variations of Microenvironments with and without SRB for Steel Q 235 under a Simulated Disbonded Coating[J]. Industrial & Engineering Chemistry Research,2013,52(36):12838-12845.
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| APA |
J. Xu,C. Sun,M. C. Yan,&F. H. Wang.(2013).Variations of Microenvironments with and without SRB for Steel Q 235 under a Simulated Disbonded Coating.Industrial & Engineering Chemistry Research,52(36),12838-12845.
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| MLA |
J. Xu,et al."Variations of Microenvironments with and without SRB for Steel Q 235 under a Simulated Disbonded Coating".Industrial & Engineering Chemistry Research 52.36(2013):12838-12845.
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