The effect of phosphate on MAO of AZ91D magnesium using AC power source
文献类型：期刊论文
| 作者 | Q. Wen ; F. H. Cao ; Y. Y. Shi ; Z. Zhang ; J. Q. Zhang |
| 刊名 | Materials and Corrosion-Werkstoffe Und Korrosion
 |
| 出版日期 | 2008 |
| 卷号 | 59期号:10页码:819-824 |
| 关键词 | micro-arc oxidation electrochemical impedance spectroscopy koh-aluminate solutions corrosion protection ceramic coatings alloys anodization parameters resistance behavior |
| ISSN号 | 0947-5117 |
| 中文摘要 | A rapid and convenient anodization technology with AC power source to obtain the MAO films formed on magnesium alloy AZ91D in phosphate bath (base electrolyte + Na3PO4) with or without aluminate and silicate was studied. The corrosion resistance of the anodic films was studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques and the microstructure and composition of films were examined by SEM and XRD. The results show that Na3PO4 can promote the occurrence of sparking during the MAO process, while abundant heat generated by sparking might enhance the formation of the glassy phase of the compound when the electrolyte contains the additives of NaAlO2 and Na2SiO3 simultaneously. The optimized MAO film is ivory-white smooth by naked eye, while presents porous and microcracks in microscopic scale. The anodic film formed in the alkaline solution with optimized parameters possesses superior corrosion resistance by electrochemical test. The XRD pattern shows that the components of the anodized film consist of MgO, MgAlO2, and MgSiO3. No oxide crystal with P element can be found. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33193]  |
| 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 | Q. Wen,F. H. Cao,Y. Y. Shi,et al. The effect of phosphate on MAO of AZ91D magnesium using AC power source[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2008,59(10):819-824. |
| APA | Q. Wen,F. H. Cao,Y. Y. Shi,Z. Zhang,&J. Q. Zhang.(2008).The effect of phosphate on MAO of AZ91D magnesium using AC power source.Materials and Corrosion-Werkstoffe Und Korrosion,59(10),819-824. |
| MLA | Q. Wen,et al."The effect of phosphate on MAO of AZ91D magnesium using AC power source".Materials and Corrosion-Werkstoffe Und Korrosion 59.10(2008):819-824. |
入库方式： OAI收割
来源：金属研究所
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