Local environment under simulated disbonded coating on steel pipelines in soil solution
文献类型：期刊论文
| 作者 | M. C. Yan ; J. Q. Wang ; E. H. Han ; W. Ke |
| 刊名 | Corrosion Science
 |
| 出版日期 | 2008 |
| 卷号 | 50期号:5页码:1331-1339 |
| 关键词 | microelectrode technique cathodic protection disbonded coatings stress corrosion crevice corrosion stress-corrosion cracking cathodic protection electrochemical measurements neutral ph |
| ISSN号 | 0010-938X |
| 中文摘要 | Taking advantage of microelectrode technique, the local potential and pH in a crevice simulating disbonded coating on X70 pipeline steel were investigated as a function of cathodic protection (CP) in a near neutral pH soil bulk solution bubbled with 5% CO2/N-2 gas. The experimental potential-pH (E-pH) diagrams were established for the steel in the crevice. Stress corrosion cracking (SCC) susceptibility of the steel in the local environment in the crevice was analyzed based on the experimental E-pH diagrams. The results showed that the local steel potential in the deep of the crevice was independent on CP potential applied at the opening. Due to the effect of the atmospheric CO2, a near-neutral pH local environment promoting near-neutral pH SCC (also known as transgranular SCC, TGSCC) might be harbored in the crevice even with normal CP at the opening. During CP interruption, the steel potential decay and CO2 absorption (pH decrease) might shift E-pH points into a susceptibility region of near-neutral pH SCC. (c) 2008 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33262]  |
| 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. Local environment under simulated disbonded coating on steel pipelines in soil solution[J]. Corrosion Science,2008,50(5):1331-1339. |
| APA | M. C. Yan,J. Q. Wang,E. H. Han,&W. Ke.(2008).Local environment under simulated disbonded coating on steel pipelines in soil solution.Corrosion Science,50(5),1331-1339. |
| MLA | M. C. Yan,et al."Local environment under simulated disbonded coating on steel pipelines in soil solution".Corrosion Science 50.5(2008):1331-1339. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。