Electrochemical Corrosion Behaviors of Rusted Carbon Steel
文献类型：期刊论文
| 作者 | Y. Zou ; J. Wang ; Y. Y. Zheng |
| 刊名 | Acta Physico-Chimica Sinica
 |
| 出版日期 | 2010 |
| 卷号 | 26期号:9页码:2361-2368 |
| 关键词 | Electrochemical behavior Rust layer Polarization resistance Cathodic reduction Fourier transform infrared spectroscopy atmospheric corrosion layers reduction iron wet |
| ISSN号 | 1000-6818 |
| 中文摘要 | Electrochemical methods including polarization curves, linear polarization resistance (LPR), and electrochemical impedance spectroscopy (EIS) were used to characterize and investigate the electrochemical behavior of rusted carbon steel immersed in seawater. Results indicate that the inner rust layer that forms on the surface of the carbon steel after long. term immersion greatly affects the electrode process. Polarization resistance (R(p)), determined by LPR and EIS, increases during the initial immersion period. After long. term immersion, it decreases. R(p) initially increases and then decreases gradually with immersion time. The electrochemical characteristics of the rusted carbon steel were studied by removing the outer and inner rust layers. The materials were analyzed by Fourier transform infrared (FTIR) spectroscopy and their cross. sectional morphologies were obtained to determine the cause. The results show that the beta-FeOOH, which exists in the inner rust layer, has high electrochemical activity. Its content increases with the growth of the inner rust layer. In the electrochemical tests, even a small amount of polarization allows beta-FeOOH to participate in the cathodic reduction reaction. Besides the anodic dissolution of iron and the cathodic reduction of oxygen, rust reduction is also possible. For this reason, the cathodic reaction rate is promoted and R(p) decreases. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/31808]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. Zou,J. Wang,Y. Y. Zheng. Electrochemical Corrosion Behaviors of Rusted Carbon Steel[J]. Acta Physico-Chimica Sinica,2010,26(9):2361-2368. |
| APA | Y. Zou,J. Wang,&Y. Y. Zheng.(2010).Electrochemical Corrosion Behaviors of Rusted Carbon Steel.Acta Physico-Chimica Sinica,26(9),2361-2368. |
| MLA | Y. Zou,et al."Electrochemical Corrosion Behaviors of Rusted Carbon Steel".Acta Physico-Chimica Sinica 26.9(2010):2361-2368. |
入库方式： OAI收割
来源：金属研究所
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