Microstructure and Corrosion Resistance Studies of PEO Coated Mg Alloys with a HF and US Pretreatment
文献类型：期刊论文
| 作者 | Wei, Fangfang ; Zhang, Wei ; Zhang, Tao ; Wang, Fuhui |
| 刊名 | INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
 |
| 出版日期 | 2017 |
| 卷号 | 12期号:1页码:155-165 |
| 关键词 | Mg alloys Plasma electrolytic oxidation Oxide coatings pretreatment corrosion |
| ISSN号 | 1452-3981 |
| 通讯作者 | Zhang, W ; Zhang, T (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Peoples R China. |
| 中文摘要 | The effect of hydrofluoric acid (HF) pretreatment on the microstructure and corrosion resistance of PEO coatings on AZ91 Mg alloys was investigated. The results showed that thin fluoride film was formed on AZ91 Mg alloy after pretreatment. The application of ultrasound (US) in the pretreatment made the film more compact and increased its F content. PEO coatings deposited on the pretreated AZ91 become denser with decreased porosity level and have no structural defects. The inner layer (IL) of PEO coating of HF-treated AZ91 with US is more intact and contains more F than those obtained without US. The better quality of IL could facilitate the stable discharge and form compact PEO coating. Therefore, PEO coating deposited on AZ91 pretreated with (HF+US) offered a better corrosion resistance, which is in good agreement with the results of electrochemical measurements. |
| 学科主题 | Electrochemistry |
| 收录类别 | SCI |
| 资助信息 | Key Project of Natural Science Foundation of China [51531007] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78361]  |
| 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 | Wei, Fangfang,Zhang, Wei,Zhang, Tao,et al. Microstructure and Corrosion Resistance Studies of PEO Coated Mg Alloys with a HF and US Pretreatment[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2017,12(1):155-165. |
| APA | Wei, Fangfang,Zhang, Wei,Zhang, Tao,&Wang, Fuhui.(2017).Microstructure and Corrosion Resistance Studies of PEO Coated Mg Alloys with a HF and US Pretreatment.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,12(1),155-165. |
| MLA | Wei, Fangfang,et al."Microstructure and Corrosion Resistance Studies of PEO Coated Mg Alloys with a HF and US Pretreatment".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 12.1(2017):155-165. |
入库方式： OAI收割
来源：金属研究所
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