Effect of aluminium microstructure on corrosion and inhibiting effect of polyacrylic acid in H(2)SO(4) solution
文献类型：期刊论文
| 作者 | S. A. Umoren ; Y. Li ; F. H. Wang |
| 刊名 | Journal of Applied Electrochemistry
 |
| 出版日期 | 2011 |
| 卷号 | 41期号:3页码:307-315 |
| 关键词 | Microcrystallization Aluminium Polyacrylic acid Corrosion inhibition Synergism electrochemical impedance spectroscopy microcrystalline aluminum hydrochloric-acid carbon-steel iodide-ions behavior iron nanocrystallization alloy polarization |
| ISSN号 | 0021-891X |
| 中文摘要 | The corrosion behaviour of a microcrystalline aluminium (mc-Al) coating fabricated from pure cast aluminium substrate by magnetron sputtering and the pure polycrystalline aluminium (pc-Al) were studied using electrochemical impedance spectroscopy and potentiodynamic polarization techniques in aerated 0.5 M H(2)SO(4) at 30 +/- A 1 A degrees C. The corrosion inhibiting effect of polyacrylic acid (PAA) and synergistic effect of iodide ions was also investigated. Results obtained show that surface microcrystallization increases the corrosion susceptibility of pure cast aluminium leading to decrease in interfacial impedance and an increase in the kinetics of the anodic dissolution. Introduction of PAA into the corrosive medium was observed to retard the corrosion rates of both specimens. The inhibition mechanism was affected by the microstructure of the sample. PAA functions as a mixed inhibitor but under cathodic control for pc-Al and under anodic control for mc-Al. Addition of iodide ions synergistically increased the inhibition efficiency of PAA and this effect was more pronounced with mc-Al. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30714]  |
| 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 | S. A. Umoren,Y. Li,F. H. Wang. Effect of aluminium microstructure on corrosion and inhibiting effect of polyacrylic acid in H(2)SO(4) solution[J]. Journal of Applied Electrochemistry,2011,41(3):307-315. |
| APA | S. A. Umoren,Y. Li,&F. H. Wang.(2011).Effect of aluminium microstructure on corrosion and inhibiting effect of polyacrylic acid in H(2)SO(4) solution.Journal of Applied Electrochemistry,41(3),307-315. |
| MLA | S. A. Umoren,et al."Effect of aluminium microstructure on corrosion and inhibiting effect of polyacrylic acid in H(2)SO(4) solution".Journal of Applied Electrochemistry 41.3(2011):307-315. |
入库方式： OAI收割
来源：金属研究所
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