CORROSION BEHAVIOR OF LONG-TIME IMMERSED RUSTED CARBON STEEL IN FLOWING SEAWATER
文献类型：期刊论文
| 作者 | Peng Xin2; Wang Jia2,3; Shan Chuan2; Wang Haijie2; Liu Zaijian2; Zou Yan1 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2012-10-11 |
| 卷号 | 48期号:10页码:1260-1266 |
| ISSN号 | 0412-1961 |
| 关键词 | carbon steel flowing seawater rust layer corrosion rate deviation |
| DOI | 10.3724/SP.J.1037.2012.00258 |
| 通讯作者 | Wang Jia(jwang@ouc.edu.cn) |
| 英文摘要 | The rust/metal structure is one of the multiphase and multiple interface complex systems. The corrosion under rust is the uppermost and longest form of metallic corrosion evolution process. It is difficult to accurately determine the electrochemical parameters because the existence of rust complicates the electrochemical corrosion process. Based on the result of the previous studies of quiescent seawater, the weight-loss method and different electrochemical tests such as polarization curves (PC), electrochemical impedance spectra (EIS) and linear polarization resistance (LPR) were carried out to study the corrosion behavior of A3 carbon steel immersed in flowing seawater for about 280 d. After very short immersing time, there is a thin yellow rust layer on carbon steel, but as time prolonged, the yellow corrosion products are rushed away quickly, and a tense black rust layer cover about the whole electrode. The corrosion rate obtained by weight-loss method show a steady decline and keep stable after about 84 d, but it is higher than that of the static state system data. The cathodic polarization curves show an obvious reduction current peak at about -950 mV, which makes a remarkable overestimating of the cathodic corrosion current. Polarization resistance (R-p), determined by LPR and EIS, increases during the merely short-initial immersion period, then, it decreases gradually with immersion time. This means that the corrosion rate determined by electrochemical tests shows an another pattern compared with the weight-loss result. After a very short immersion time (about 14 d), there is a remarkable deviation between the weight-loss and electrochemical test results, and the longer immersed the greater of this deviation is. So no matter in static state or flowing seawater, electrochemical methods can not get an accurate corrosion rate of carbon steel. And reliable electrochemical measurement and analysis for rusted steel need much more attention. |
| 资助项目 | National Natural Science Foundation of China[50971118] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000310823200015 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/125848]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang Jia |
| 作者单位 | 1.Shandong Acad Sci, Shandong Prov Key Lab Ocean Environm Monitoring T, Inst Oceanog Instrumentat, Qingdao 266100, Peoples R China 2.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China 3.State Key Lab Corros & Protect Met, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng Xin,Wang Jia,Shan Chuan,et al. CORROSION BEHAVIOR OF LONG-TIME IMMERSED RUSTED CARBON STEEL IN FLOWING SEAWATER[J]. ACTA METALLURGICA SINICA,2012,48(10):1260-1266. |
| APA | Peng Xin,Wang Jia,Shan Chuan,Wang Haijie,Liu Zaijian,&Zou Yan.(2012).CORROSION BEHAVIOR OF LONG-TIME IMMERSED RUSTED CARBON STEEL IN FLOWING SEAWATER.ACTA METALLURGICA SINICA,48(10),1260-1266. |
| MLA | Peng Xin,et al."CORROSION BEHAVIOR OF LONG-TIME IMMERSED RUSTED CARBON STEEL IN FLOWING SEAWATER".ACTA METALLURGICA SINICA 48.10(2012):1260-1266. |
入库方式： OAI收割
来源：金属研究所
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