Effect of phytic acid on the microstructure and corrosion resistance of Ni coating
文献类型：期刊论文
| 作者 | G. Z. Meng ; F. L. Sun ; Y. W. Shaoa ; T. Zhang ; F. H. Wang ; C. F. Dong ; X. G. Li |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2010 |
| 卷号 | 55期号:20页码:5990-5995 |
| 关键词 | Nano-scale twins Phytic acid Reverse pulsed electrodeposition TEM Corrosion electrochemical-impedance spectroscopy boundary-character-distribution nickel electrodeposition intergranular corrosion high-density oxide-films grain-size nanoscale behavior phytate |
| ISSN号 | 0013-4686 |
| 中文摘要 | In this work, the pure Ni coatings were synthesized on Q235 steel by using reverse pulsed electrode-position technique in sulphate-based baths with 0, 0.1, 0.2 and 0.3 g/L phytic acid additive. The effect of phytic acid on the microstructure and micro-morphology of the sample was observed by transmission electron microscopy (TEM) and scanning electron microscopy (SEM), respectively. And the effect of phytic acid on the corrosion resistance of the sample was studied by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results demonstrated that the addition of phytic acid was in favor of the growth of nano-scale twins (NT) in the interior of grains, which was due to the lowered stacking fault energies of Ni during the electrodeposition, and the typical morphology of pyramidal islands on the surface. The results also demonstrated that the effect of phytic acid was not monotonous with increasing concentration: the passive current density i(p) was minimum and the charge transfer resistance R(t) was maximum for the sample obtained from the bath with 0.2 g/L phytic acid, indicating that the sample obtained from the bath with 0.2 g/L phytic acid showed the best corrosion resistance. (C) 2010 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31379]  |
| 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 | G. Z. Meng,F. L. Sun,Y. W. Shaoa,et al. Effect of phytic acid on the microstructure and corrosion resistance of Ni coating[J]. Electrochimica Acta,2010,55(20):5990-5995. |
| APA | G. Z. Meng.,F. L. Sun.,Y. W. Shaoa.,T. Zhang.,F. H. Wang.,...&X. G. Li.(2010).Effect of phytic acid on the microstructure and corrosion resistance of Ni coating.Electrochimica Acta,55(20),5990-5995. |
| MLA | G. Z. Meng,et al."Effect of phytic acid on the microstructure and corrosion resistance of Ni coating".Electrochimica Acta 55.20(2010):5990-5995. |
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。