Electrochemical measurements using combination microelectrode in crevice simulating disbonded of pipeline coatings under cathodic protection
文献类型：期刊论文
| 作者 | M. C. Yan ; J. Q. Wang ; E. H. Han ; W. Ke |
| 刊名 | Corrosion Engineering Science and Technology
 |
| 出版日期 | 2007 |
| 卷号 | 42期号:1页码:42-49 |
| 关键词 | cathodic protection crevice corrosion microelectrode polarisation potential distribution stress corrosion cracking reference electrode antimony electrode buried pipelines corrosion ph steel surfaces chloride |
| ISSN号 | 1478-422X |
| 中文摘要 | A novel combination microelectrode was constructed based on an iridium pH microelectrode and an Ag/AgCl microelectrode, and was applied to simultaneously monitor the steel potential, pH and chloride ion concentration in a crevice simulating disbonding of pipeline coatings with cathodic protection ( CP) applied or removed. The sensing characteristics and sensitivity of the microelectrode are described as well as the calibration procedures. A simulated crevice was formed between a pipeline steel surface and a polymethylmethacrylate plate. The results showed that in CP conditions, the evident potential gradient resulting from the IR potential drop was concentrated at the crevice opening. A protective local environment induced by CP under disbonded coatings was characterised by an increase in pH and removal of Cl-. After CP is removed, the protective effects can persist for a period of time, depending on the diffusion of soluble species. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33964]  |
| 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 | M. C. Yan,J. Q. Wang,E. H. Han,et al. Electrochemical measurements using combination microelectrode in crevice simulating disbonded of pipeline coatings under cathodic protection[J]. Corrosion Engineering Science and Technology,2007,42(1):42-49. |
| APA | M. C. Yan,J. Q. Wang,E. H. Han,&W. Ke.(2007).Electrochemical measurements using combination microelectrode in crevice simulating disbonded of pipeline coatings under cathodic protection.Corrosion Engineering Science and Technology,42(1),42-49. |
| MLA | M. C. Yan,et al."Electrochemical measurements using combination microelectrode in crevice simulating disbonded of pipeline coatings under cathodic protection".Corrosion Engineering Science and Technology 42.1(2007):42-49. |
入库方式： OAI收割
来源：金属研究所
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