| Comparative study on corrosion protection properties of electroless Ni-P-ZrO2 and Ni-P coatings on AZ91D magnesium alloy | |
| Song, Y. W.; Shan, D. Y.; Han, E. H. | |
| Corresponding Author | Han, E. H.(ehhan@imr.ac.cn) |
| 2007-07-01 | |
| Source Publication | MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
 |
| ISSN | 0947-5117 |
| Volume | 58Issue:7Pages:506-510 |
| Abstract | Electroless Ni-P-ZrO2 and Ni-P coatings on AZ91D magnesium alloy were prepared, and their corrosion protection properties were compared in this paper. The potentiodynamic curves and electrochemical impedance spectroscopy (EIS) of the coated magnesium alloy in 3.5% NaCl solution showed that the corrosion performance of Ni-P-ZrO2 composite coating was superior to that of Ni-P coating. The same conclusion was obtained with salt spray and immersion tests. The corrosion morphologies of two kinds of coatings with various immersion time intervals in 3.5% NaCl solution indicated that most corrosion products concentrated on the nodules boundaries of Ni-P coating and blocked corrosion pit was the main corrosion form. For the Ni-P-ZrO2 coating, tortuous nodules boundaries were not the weak sites of the coating and corrosion initiated from the nickel phosphor alloy around the nanometer powders. Open corrosion pits occurred on the composite coating surface, and the coating was corroded gradually. Thus, the Ni-PZrO2 coating exhibited better corrosion protection property to magnesium alloy substrate than Ni-P coating. |
| DOI | 10.1002/maco.200604033 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000248232300003 |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/90591 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Han, E. H. |
| Affiliation | Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Song, Y. W.,Shan, D. Y.,Han, E. H.. Comparative study on corrosion protection properties of electroless Ni-P-ZrO2 and Ni-P coatings on AZ91D magnesium alloy[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2007,58(7):506-510. |
| APA | Song, Y. W.,Shan, D. Y.,&Han, E. H..(2007).Comparative study on corrosion protection properties of electroless Ni-P-ZrO2 and Ni-P coatings on AZ91D magnesium alloy.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,58(7),506-510. |
| MLA | Song, Y. W.,et al."Comparative study on corrosion protection properties of electroless Ni-P-ZrO2 and Ni-P coatings on AZ91D magnesium alloy".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 58.7(2007):506-510. |
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