Comparison of the influence of nitrate ions on the electrochemical behaviour of iron and carbon steels in sulphate solutions
文献类型：期刊论文
| 作者 | H. Y. Ma ; S. H. Chen ; C. Yang ; J. L. Luo |
| 刊名 | Journal of the Serbian Chemical Society
 |
| 出版日期 | 2002 |
| 卷号 | 67期号:6页码:425-436 |
| 关键词 | pitting general corrosion passive film cyclic voltammogram polarization curves |
| ISSN号 | 0352-5139 |
| 中文摘要 | The effect of nitrate ions on the electrochemical behaviour of iron (ferrite) and two carbon steels (martensite and pearlite) in sulphate solutions of different pH values was investigated by cyclic voltammetry, polarization and electrochemical impedance spectroscopy The pitting inhibiting effect of nitrate ions on ferrite in sulphate media is pH dependent. Nitrate ions were unable to inhibit the pitting on ferrite in neutral sulphate solutions, but did effectively protect passivated ferrite from pitting in acidic sulphate solutions. No pitting occurred on the surface of the martensite and pearlite specimens in sulphate solutions, regardless of the pH of the solutions. At the open-circuit corrosion potentials, the three materials underwent general corrosion. The impedance spectra for die three materials measured in neutral sulphate solutions containing nitnates and chlorides at the corrosion potentials all showed a capacitive loop, while in acidic sulphate solutions their impedance spectra were greatly reduced in size and displayed at least a low frequency impedance loop (inductive or capacitive loop) besides the well-known high frequency capacitive loop. The variation of the impedance behaviour with pH is explained. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36370]  |
| 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 | H. Y. Ma,S. H. Chen,C. Yang,et al. Comparison of the influence of nitrate ions on the electrochemical behaviour of iron and carbon steels in sulphate solutions[J]. Journal of the Serbian Chemical Society,2002,67(6):425-436. |
| APA | H. Y. Ma,S. H. Chen,C. Yang,&J. L. Luo.(2002).Comparison of the influence of nitrate ions on the electrochemical behaviour of iron and carbon steels in sulphate solutions.Journal of the Serbian Chemical Society,67(6),425-436. |
| MLA | H. Y. Ma,et al."Comparison of the influence of nitrate ions on the electrochemical behaviour of iron and carbon steels in sulphate solutions".Journal of the Serbian Chemical Society 67.6(2002):425-436. |
入库方式： OAI收割
来源：金属研究所
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