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| Influence of Sulfate-Reducing Bacteria on the Corrosion Behavior of High Strength Steel EQ70 under Cathodic Polarization | |
Guan, Fang1,2 ; Zhai, Xiaofan1; Duan, Jizhou1; Zhang, Meixia1,2; Hou, Baorong1
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| 2016-09-07 | |
| 发表期刊 | PLOS ONE
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| 卷号 | 11期号:9 |
| 文章类型 | Article |
| 摘要 | Certain species of sulfate- reducing bacteria (SRB) use cathodes as electron donors for metabolism, and this electron transfer process may influence the proper protection potential choice for structures. The interaction between SRB and polarized electrodes had been the focus of numerous investigations. In this paper, the impact of cathodic protection (CP) on Desulfovibrio caledoniens metabolic activity and its influence on highs trength steel EQ70 were studied by bacterial analyses and electrochemical measurements. The results showed that EQ70 under -0.85 V-SCE CP had a higher corrosion rate than that without CP, while EQ70 with -1.05 V-SCE had a lower corrosion rate. The enhanced SRB metabolic activity at -0.85 V-SCE was most probably caused by the direct electron transfer from the electrode polarized at -0.85 V-SCE. This direct electron transfer pathway was unavailable in -1.05 V-SCE. In addition, the application of cathodic protection led to the transformation of sulfide rusts into carbonates rusts. These observations have been employed to provide updated recommendations for the optimum CP potential for steel structures in the presence of SRB. |
| DOI | 10.1371/journal.pone.0162315 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000383255200057 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/135889 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Marine Corros & Protect Ctr, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 第一作者单位 | 海洋环境腐蚀与生物污损重点实验室 |
| 推荐引用方式 GB/T 7714 | Guan, Fang,Zhai, Xiaofan,Duan, Jizhou,et al. Influence of Sulfate-Reducing Bacteria on the Corrosion Behavior of High Strength Steel EQ70 under Cathodic Polarization[J]. PLOS ONE,2016,11(9). |
| APA | Guan, Fang,Zhai, Xiaofan,Duan, Jizhou,Zhang, Meixia,&Hou, Baorong.(2016).Influence of Sulfate-Reducing Bacteria on the Corrosion Behavior of High Strength Steel EQ70 under Cathodic Polarization.PLOS ONE,11(9). |
| MLA | Guan, Fang,et al."Influence of Sulfate-Reducing Bacteria on the Corrosion Behavior of High Strength Steel EQ70 under Cathodic Polarization".PLOS ONE 11.9(2016). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Influence of Sulfate（7297KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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