Evaluation of Metal Corrosion under Defective Coatings by WBE and EIS Technique
文献类型：期刊论文
| 作者 | W. Zhang ; J. Wang ; Y. N. Li ; W. Wang |
| 刊名 | Acta Physico-Chimica Sinica
 |
| 出版日期 | 2010 |
| 卷号 | 26期号:11页码:2941-2950 |
| 关键词 | Electrochemical impedance spectroscopy Wire beam electrode Organic coating wire beam electrode electrochemical impedance spectroscopy scanning kelvin probe organic coatings cathodic protection steel inhomogeneity degradation tool |
| ISSN号 | 1000-6818 |
| 中文摘要 | We investigated the corrosion of steel under defective coatings in 3.5% (mass fraction) NaCl solution by the wire beam electrode (WBE) and electrochemical impedance spectroscopy (EIS) technique. During the entire coating deterioration process, the EIS diagrams were dominated by the substrate corrosion process of the defect while the coatings and underlying electrochemical processes were "averaged" out. However, according to the current distribution maps plotted using the WBE, EIS responses of the anodic and cathodic regions of the defect and underlying coatings were detected. Initially, the high anodic and cathodic current densities were only monitored at the defect areas and then the cathodic sites spread out beneath the coatings around t2948he defect while the anodic sites remained on the defect. The substrate corrosion initiation and development mechanism of the defect and underlying coatings is discussed based on experimental results. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/31724]  |
| 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 | W. Zhang,J. Wang,Y. N. Li,et al. Evaluation of Metal Corrosion under Defective Coatings by WBE and EIS Technique[J]. Acta Physico-Chimica Sinica,2010,26(11):2941-2950. |
| APA | W. Zhang,J. Wang,Y. N. Li,&W. Wang.(2010).Evaluation of Metal Corrosion under Defective Coatings by WBE and EIS Technique.Acta Physico-Chimica Sinica,26(11),2941-2950. |
| MLA | W. Zhang,et al."Evaluation of Metal Corrosion under Defective Coatings by WBE and EIS Technique".Acta Physico-Chimica Sinica 26.11(2010):2941-2950. |
入库方式： OAI收割
来源：金属研究所
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