| Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel | |
| Song, YQ; Du, CW; Zhang, X; Li, XG | |
| Corresponding Author | Song, YQ(syq-88@163.com) |
| 2006-03-01 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 42Issue:3Pages:305-310 |
| Abstract | Cathodic polarization characteristic of a wedge-shaped crevice of X70 pipeline steel was studied under impressed current cathodic protection in simulated solution of desert soil of Ku'erle in Xinjiang of China. The influences of applied control potentials (-775 mV, -925 mV) and -1075 mV (vs SCE)) and crevice thicknesses (0.15 mm, 0.30 mm and 0.45 mm) on polarization potentials, polarization current and pH value in crevice were investigated. It was shown that the gradients of polarization potential and current in crevice gradually decreased with time. Moreover, with lowering of opening control potential and growing of crevice opening thickness, the polarization potentials in crevice decreased and the polarization current and the pH value in crevice increased. More negative shift of the control potentials and bigger crevice opening thickness can make the growth rate of pH value decrease. |
| Keyword | X70 pipeline steel crevice corrosion cathodic polaxization polarization potential polarization current |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000236556500014 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/86442 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Song, YQ |
| Affiliation | 1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Inner Mongolia Univ Sci & Technol, Sch Mat Sci & Engn, Baotou 014010, Peoples R China 3.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Song, YQ,Du, CW,Zhang, X,et al. Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel[J]. ACTA METALLURGICA SINICA,2006,42(3):305-310. |
| APA | Song, YQ,Du, CW,Zhang, X,&Li, XG.(2006).Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel.ACTA METALLURGICA SINICA,42(3),305-310. |
| MLA | Song, YQ,et al."Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel".ACTA METALLURGICA SINICA 42.3(2006):305-310. |
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