Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
| Effect of sulfate-reducing bacteria on corrosion behavior of mild steel in sea mud | |
| Zhao, Xiaodong; Duan, Jizhou; Hou, Baorong; Wu, Suru | |
| 2007-05-01 | |
| 发表期刊 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| 卷号 | 23期号:3页码:323-328 |
| 文章类型 | Article |
| 摘要 | Microbiologically influenced corrosion (MIC) is very severe corrosion for constructions buried under sea mud environment. Therefore it is of great importance to carry out the investigation of the corrosion behavior of marine steel in sea mud. In this paper, the effect of sulfate-reducing bacteria (SRB) on corrosion behavior of mild steel in sea mud was studied by weight loss, dual-compartment cell, electronic probe microanalysis (EPMA), transmission electron microscopy (TEM).combined with energy dispersive X-ray analysis (EDX) and electrochemical impedance spectroscopy (EIS). The results showed that corrosion rate and galvanic current were influenced by the metabolic activity of SRB. In the environment of sea mud containing SRB, the original corrosion products, ferric (oxyhydr) oxide, transformed to iron sulfide. With the excess of the dissolved H2S, the composition of the protective layer formed of FeS transformed to FeS2 or other non-stoichiometric polysulphide, which changed the state of the former layer and accelerated the corrosion process.; Microbiologically influenced corrosion (MIC) is very severe corrosion for constructions buried under sea mud environment. Therefore it is of great importance to carry out the investigation of the corrosion behavior of marine steel in sea mud. In this paper, the effect of sulfate-reducing bacteria (SRB) on corrosion behavior of mild steel in sea mud was studied by weight loss, dual-compartment cell, electronic probe microanalysis (EPMA), transmission electron microscopy (TEM).combined with energy dispersive X-ray analysis (EDX) and electrochemical impedance spectroscopy (EIS). The results showed that corrosion rate and galvanic current were influenced by the metabolic activity of SRB. In the environment of sea mud containing SRB, the original corrosion products, ferric (oxyhydr) oxide, transformed to iron sulfide. With the excess of the dissolved H2S, the composition of the protective layer formed of FeS transformed to FeS2 or other non-stoichiometric polysulphide, which changed the state of the former layer and accelerated the corrosion process. |
| 关键词 | Microbiologically Influenced Corrosion (Mic) Sulfate-reducing Bacteria (Srb) Mild Steel Sea Mud |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247220600007 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/6224 |
| 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, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Xiaodong,Duan, Jizhou,Hou, Baorong,et al. Effect of sulfate-reducing bacteria on corrosion behavior of mild steel in sea mud[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2007,23(3):323-328. |
| APA | Zhao, Xiaodong,Duan, Jizhou,Hou, Baorong,&Wu, Suru.(2007).Effect of sulfate-reducing bacteria on corrosion behavior of mild steel in sea mud.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,23(3),323-328. |
| MLA | Zhao, Xiaodong,et al."Effect of sulfate-reducing bacteria on corrosion behavior of mild steel in sea mud".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 23.3(2007):323-328. |
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