| Investigation of microcracks on conversion film of AZ80 Mg alloy | |
| Song, Yingwei; Xu, Zubin; Dong, Kaihui; Shan, Dayong; Han, En-Hou | |
| Corresponding Author | Song, Yingwei(ywsong@imr.ac.cn) |
| 2019-06-03 | |
| Source Publication | SURFACE ENGINEERING
 |
| ISSN | 0267-0844 |
| Volume | 35Issue:6Pages:527-535 |
| Abstract | Chemical conversion films are widely used to improve the corrosion resistance of Mg alloys. However, abundant microcracks can be found on the surface of conversion film using scanning electron microscopy (SEM) observation. The phosphate conversion film was dried by three methods in this study, thereafter the formation reasons of microcracks and their effect on the corrosion resistance were investigated using SEM and optical morphology observations, and electrochemical measurements. The results indicate that the conversion film dried at high temperature or vacuuming during SEM measurements can accelerate the formation of microcracks. Especially, the microcracks observed using SEM can be attributed to the effect of vacuuming instead of showing the original status. Corrosive mediums are susceptible to preferentially absorb on the microcracks, further to form localised corrosion. It is better to dry the conversion films at room temperature instead of high temperature during the actual applications. |
| Keyword | Microcracks conversion film SEM vacuuming drying |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| DOI | 10.1080/02670844.2018.1507292 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2016YFB0301105] ; National Natural Science Foundation of China[51671199] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Coatings & Films |
| WOS ID | WOS:000462849400008 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132672 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Song, Yingwei |
| Affiliation | Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Song, Yingwei,Xu, Zubin,Dong, Kaihui,et al. Investigation of microcracks on conversion film of AZ80 Mg alloy[J]. SURFACE ENGINEERING,2019,35(6):527-535. |
| APA | Song, Yingwei,Xu, Zubin,Dong, Kaihui,Shan, Dayong,&Han, En-Hou.(2019).Investigation of microcracks on conversion film of AZ80 Mg alloy.SURFACE ENGINEERING,35(6),527-535. |
| MLA | Song, Yingwei,et al."Investigation of microcracks on conversion film of AZ80 Mg alloy".SURFACE ENGINEERING 35.6(2019):527-535. |
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