| Effect of applied potential on the microstructure, composition and corrosion resistance evolution of fluoride conversion film on AZ31 magnesium alloy | |
| Wu, Liping; Wang, Changgang; Pokharel, Durga Bhakta; Etim, Ini-Ibehe Nabuk; Zhao, Lin; Dong, Junhua; Ke, Wei; Chen, Nan | |
| Corresponding Author | Dong, Junhua(jhdong@imr.ac.cn) |
| 2018-11-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 34Issue:11Pages:2084-2090 |
| Abstract | AZ31 magnesium (Mg) alloy was potentiostatic polarized in 0.1 M deaerated KF solution with pH 7.5 from -0.4 V to -1.4 V with an interval of -0.2 V. The polarization process was described by the potentiostatic current decay. The resultant film was analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS). The results demonstrated that the deposited film included a Mg(OH)(2)/MgF2 containing inner layer and a Mg(OH)(2)/MgF2/KMgF3 comprising outer layer. The high polarized potential produced high content of MgF2 but low content of KMgF3 and thin film. Conversely, the low polarized potential produced small content of MgF2 but high content of KMgF3 and thick film. The optimal corrosion resistance of the deposited film was obtained at -1.4V, which was closely related with the content of MgF2 and KMgF3 and the film thickness. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Potentiostatic Fluoride conversion film AZ31 magnesium alloy KF solution Corrosion |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.jmst.2018.04.009 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51701221] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000439396700012 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135919 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Dong, Junhua |
| Affiliation | Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Liping,Wang, Changgang,Pokharel, Durga Bhakta,et al. Effect of applied potential on the microstructure, composition and corrosion resistance evolution of fluoride conversion film on AZ31 magnesium alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(11):2084-2090. |
| APA | Wu, Liping.,Wang, Changgang.,Pokharel, Durga Bhakta.,Etim, Ini-Ibehe Nabuk.,Zhao, Lin.,...&Chen, Nan.(2018).Effect of applied potential on the microstructure, composition and corrosion resistance evolution of fluoride conversion film on AZ31 magnesium alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(11),2084-2090. |
| MLA | Wu, Liping,et al."Effect of applied potential on the microstructure, composition and corrosion resistance evolution of fluoride conversion film on AZ31 magnesium alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.11(2018):2084-2090. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment