Sulfate Reducing Bacteria Corrosion of Pipeline Steel in Fe-Rich Red Soil
文献类型：期刊论文
| 作者 | Yu Libao1,3; Yan Maocheng3; Ma Jian4; Wu Minghao4; Shu Yun2,3; Sun Cheng3; Xu Jin3; Yu Changkun3; Qing Yongchang1,3 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2017-12-11 |
| 卷号 | 53期号:12页码:1568-1578 |
| 关键词 | pipeline steel microbiologically induced corrosion (MIC) soil corrosion electron transfer iron respiration |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2017.00095 |
| 通讯作者 | Yan Maocheng(Yanmc@imr.ac.cn) |
| 英文摘要 | Corrosion of buried pipeline in iron-rich clay mineral, such as the red soil, is a great issue for safety and economy concern in various industrial applications, e.g. oil/gas, water, sewerage disposal systems, which may partly attribute to the active Fe oxides constituents residing in the clay. Although various parameters on metallic corrosion in red soil have been widely studied, some soil properties affecting corrosion are still not fully understood, such as synergistic action of sulfate reducing bacteria (SRB) and Fe oxides in iron-rich clay. Anaerobic SRB, which reduce sulfate to sulfide, have long been associated with corrosion of steel and have been the focus of most research on biocorrosion. Recently, there have been numerous studies showing that SRB can reduce oxidized metals, such as Fe(III), Mn(IV), and some SRB are capable of coupling metal reduction to growth, so Fe(III) reduction in clay minerals by SRB will have great impacts on corrosion processes. Most of previous studies focused on the single parameter, such as microbial activities, Fe oxides, but neglected their synergistic action. In this work, to further mechanistic understanding the synergistic action between SRB and Fe oxides, the indoor immersed experiment was desinged. Open circuit potential (E-OCP), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and polarization potential scanning were used to monitor the corrosion electrochemical process of the X80 pipeline steel electrode. Microscopic surface observation was studied by SEM. The results showed that, SRB had no significant effect on the electrochemical process during the environmental adaptation period (the initial 7 d). The decrease of E-OCP and electrochemical impedance (|Z|) of the X80 steel was resulted by the SRB iron respiration activity in the growing period, which significantly promoted the corrosion process of the steel. The SRB acts as an electron transport medium to participate in the electron transfer between Fe and iron oxide, which may lead to the electrochemical reduction of the iron oxides in the surface of red soil particles by the action of extracellular iron respiration, and it's the main reason to promote the local corrosion electrochemical process. The relationship between the corrosion of the material in the Fe-rich red soil and the microbial extracellular iron respiration was proposed. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA13040500] ; National RD Infrastructure and Facility Development Program of China[2005DKA10400CT-2-02] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000416301600003 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; National RD Infrastructure and Facility Development Program of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/127106]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yan Maocheng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 4.China Natl Petr Corp, Xinjiang Oilfield Branch Co, Karamay 834002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu Libao,Yan Maocheng,Ma Jian,et al. Sulfate Reducing Bacteria Corrosion of Pipeline Steel in Fe-Rich Red Soil[J]. ACTA METALLURGICA SINICA,2017,53(12):1568-1578. |
| APA | Yu Libao.,Yan Maocheng.,Ma Jian.,Wu Minghao.,Shu Yun.,...&Qing Yongchang.(2017).Sulfate Reducing Bacteria Corrosion of Pipeline Steel in Fe-Rich Red Soil.ACTA METALLURGICA SINICA,53(12),1568-1578. |
| MLA | Yu Libao,et al."Sulfate Reducing Bacteria Corrosion of Pipeline Steel in Fe-Rich Red Soil".ACTA METALLURGICA SINICA 53.12(2017):1568-1578. |
入库方式： OAI收割
来源：金属研究所
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