Corrosion of pure magnesium under thin electrolyte layers
文献类型：期刊论文
| 作者 | T. Zhang ; C. M. Chen ; Y. W. Shao ; G. Z. Meng ; F. H. Wang ; X. G. Li ; C. F. Dong |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2008 |
| 卷号 | 53期号:27页码:7921-7931 |
| 关键词 | pure magnesium thin electrolyte layer corrosion electrochemical noise stochastic analysis wet-dry conditions electrochemical noise-analysis atmospheric corrosion ac-impedance in-situ localized corrosion pitting corrosion organic coatings aluminum-alloys oxide-films |
| ISSN号 | 0013-4686 |
| 中文摘要 | The corrosion behavior of pure magnesium was investigated by means of cathodic polarization curve, electrochemical impedance spectroscopy (EIS) and electrochemical noise (EN) under aerated and deaerated thin electrolyte layers (TEL) with various thicknesses. Based on shot noise theory and stochastic theory, the EN results were quantitatively analyzed by using the Weibull and Gumbel distribution function, respectively. The results show that the cathodic process of pure magnesium under thin electrolyte layer was dominated by hydrogen reduction. With the decreasing of thin electrolyte layer thickness, cathodic process was retarded slightly while the anodic process was inhibited significantly, which indicated that both the cathodic and anodic process were inhibited in the presence of oxygen. The absence of oxygen decreased the corrosion resistance of pure magnesium in case of thin electrolyte layer. The corrosion was more localized under thin electrolyte layer than that in bulk solution. The results also demonstrate that there exist two kinds of effects for thin electrolyte layer on the corrosion behavior of pure magnesium: (I) the rate of pit initiation was evidently retarded compared to that in bulk solution; (2) the probability of pit growth oppositely increased. The corrosion model of pure magnesium under thin electrolyte layer was suggested in the paper. (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/321006/33336]  |
| 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 | T. Zhang,C. M. Chen,Y. W. Shao,et al. Corrosion of pure magnesium under thin electrolyte layers[J]. Electrochimica Acta,2008,53(27):7921-7931. |
| APA | T. Zhang.,C. M. Chen.,Y. W. Shao.,G. Z. Meng.,F. H. Wang.,...&C. F. Dong.(2008).Corrosion of pure magnesium under thin electrolyte layers.Electrochimica Acta,53(27),7921-7931. |
| MLA | T. Zhang,et al."Corrosion of pure magnesium under thin electrolyte layers".Electrochimica Acta 53.27(2008):7921-7931. |
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。