| In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating | |
| Li, Q.1; Zhu, P.1; Chen, S.2; Zhang, B.2; Yang, K.2 | |
| Corresponding Author | Chen, S.(sschen@imr.ac.cn) |
| 2017 | |
| Source Publication | MATERIALS TECHNOLOGY
 |
| ISSN | 1066-7857 |
| Volume | 32Issue:7Pages:409-414 |
| Abstract | Fluoride chemical conversion treatment is an effective way to improve the corrosion resistance and inhibit pitting corrosion for magnesium alloys. In this study, the degradation process and why the coating inhibited pitting corrosion were investigated. In vitro degradation of AZ31B magnesium alloy with fluoride conversion coating was studied by immersing test. During degradation, magnesium fluoride in the coating could dissolve into F ion and Mg ions, the later could immediately react with OH- to form Mg(OH)(2) deposition. Then sample was covered by a layer of degradation products, which were mainly composed of Mg(OH)(2). Owning to the low solubility of MgF2, formation rate of Mg(OH)(2) was slow, giving rise to an even corrosion resistant coating. As H2O and Cl- penetrating to the alloy substrate, the alloy began to degrade forming Mg(OH)(2) and H-2. Above all, the degradation of fluoride treated magnesium alloy was gentle and inward to migration layer by layer. |
| Keyword | AZ31B magnesium alloy degradation fluoride conversion coating |
| Funding Organization | National Key Research and Development Program of China ; Jiangsu Innovation Center for Biomaterials |
| DOI | 10.1080/10667857.2016.1262311 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2016YFC1102404] ; Jiangsu Innovation Center for Biomaterials |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000401156300003 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/124294 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Chen, S. |
| Affiliation | 1.Liaoning Univ, Inst Chem Sci, 66 Chongshan Rd, Shenyang 110036, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Q.,Zhu, P.,Chen, S.,et al. In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating[J]. MATERIALS TECHNOLOGY,2017,32(7):409-414. |
| APA | Li, Q.,Zhu, P.,Chen, S.,Zhang, B.,&Yang, K..(2017).In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating.MATERIALS TECHNOLOGY,32(7),409-414. |
| MLA | Li, Q.,et al."In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating".MATERIALS TECHNOLOGY 32.7(2017):409-414. |
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