EFFECTS OF SHEWANELLA ALGAE ON CORROSION OF Zn-Al-Cd ANODE
文献类型：期刊论文
| 作者 | Zhang Jie1 ; Song Xiuxia1,2; Luan Xin1,3; Sun Caixia1,4; Duan Jizhou1; Hou Baorong1
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| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2012-12-11 |
| 卷号 | 48期号:12页码:1495-1502 |
| 关键词 | Shewanella sacrificial anode electrochemical impedance spectroscopy molecular biology corrosion |
| ISSN号 | 0412-1961 |
| 通讯作者 | Zhang, J (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China. |
| 英文摘要 | Shewanella is a typical iron-reducing bacteria which can reduce insoluble ferric iron to soluble ferrous iron and consume oxygen, being considered as the reasons of corrosion inhibition. The main study on Shewanella algae (SA) is the degradation of environmentally harmful organic compounds and heavy metals, and there are very few reports on the interaction of metal corrosion and SA. In this paper, the bacteria isolated from yellow rust layer were identified as SA by using molecular biology techniques. The growth curve of SA was determined with spectrophotography. The results showed that the growth curve was divided into three phases: exponential growth phase, steady phase and decay phase. The effects of SA on corrosion of Zn-Al-Cd anode were investigated by using electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and fluorescence microscopy (FM). The results showed that corrosion potential for samples exposed to the culture medium containing SA was higher than that for samples exposed to the sterile culture medium during the whole experiment. R-ct value in the culture medium containing SA was much greater than that of anode in the sterile culture medium. The bacteria could inhibit the corrosion of the specimen. The reason was that a biofilm layer was formed on the sample surface and the oxygen was consumed through the metabolic activities of bacteria in the culture medium containing bacteria. The biofilm layer was formed on the 5th day in the culture medium containing bacteria. While in bacteria-free system, obvious corrosion pits and white corrosion products were seen on the sample surface. The complete biofilm was formed on 7th day, and it detached from the sample on 11th day because of the exhaustion of nutrients and oxygen, showing that the biofilm formation had a great relationship with the presence of nutrients and oxygen. |
| 学科主题 | Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| 原文出处 | 10.3724/SP.J.1037.2012.00309 |
| 语种 | 英语 |
| WOS记录号 | WOS:000312687800013 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/12465]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 海洋研究所_实验海洋生物学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China 3.Ocean Univ China, Coll Marine Life Sci, Qingdao 266100, Peoples R China 4.Yantai Univ, Chem & Chem Engn Coll, Yantai 264005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Jie,Song Xiuxia,Luan Xin,et al. EFFECTS OF SHEWANELLA ALGAE ON CORROSION OF Zn-Al-Cd ANODE[J]. ACTA METALLURGICA SINICA,2012,48(12):1495-1502. |
| APA | Zhang Jie,Song Xiuxia,Luan Xin,Sun Caixia,Duan Jizhou,&Hou Baorong.(2012).EFFECTS OF SHEWANELLA ALGAE ON CORROSION OF Zn-Al-Cd ANODE.ACTA METALLURGICA SINICA,48(12),1495-1502. |
| MLA | Zhang Jie,et al."EFFECTS OF SHEWANELLA ALGAE ON CORROSION OF Zn-Al-Cd ANODE".ACTA METALLURGICA SINICA 48.12(2012):1495-1502. |
入库方式： OAI收割
来源：海洋研究所
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