Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy
Anodization is a useful technique for forming protective films on magnesium alloys and improves its corrosion resistance. Based on the rare earth metal (REE) salt solution, the optimum parameter was selected by comparing the anti-corrosion property of anodic film. The structure, component and surfac...
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| Format: | Article |
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Trans Tech Publications, Switzerland
2012
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| author | Zain, M.Z.M. Illias, S. Salleh, Mohamed Najib Ismail, K. Azwan Nooraizedfiza, Z. |
| author_facet | Zain, M.Z.M. Illias, S. Salleh, Mohamed Najib Ismail, K. Azwan Nooraizedfiza, Z. |
| author_sort | Zain, M.Z.M. |
| collection | UUM |
| description | Anodization is a useful technique for forming protective films on magnesium alloys and improves its corrosion resistance. Based on the rare earth metal (REE) salt solution, the optimum parameter was selected by comparing the anti-corrosion property of anodic film. The structure, component and surface morphology of anodic film and cross-section were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM) coupled with Energy Dispersive Spectroscopy (EDS). The corrosion behavior was evaluated by immersion test. In this paper, a dense anodic film approximately 20 µm thick was prepared on a AZ91D magnesium alloy through anodic oxidation coating. The results show that the anodic films were mainly composed of Mg17Al12, Mg17La2, MgO and amorphous compounds. The best corrosion resistance was obtained with specimen anodized in solution containing both lanthanum nitrate and magnesium, whose corrosion resistance is approximately 3 times higher than that of as-received AZ91D magnesium alloy. |
| first_indexed | 2024-07-04T06:05:43Z |
| format | Article |
| id | uum-17670 |
| institution | Universiti Utara Malaysia |
| last_indexed | 2024-07-04T06:05:43Z |
| publishDate | 2012 |
| publisher | Trans Tech Publications, Switzerland |
| record_format | eprints |
| spelling | uum-176702016-04-21T03:35:42Z https://repo.uum.edu.my/id/eprint/17670/ Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy Zain, M.Z.M. Illias, S. Salleh, Mohamed Najib Ismail, K. Azwan Nooraizedfiza, Z. TJ Mechanical engineering and machinery Anodization is a useful technique for forming protective films on magnesium alloys and improves its corrosion resistance. Based on the rare earth metal (REE) salt solution, the optimum parameter was selected by comparing the anti-corrosion property of anodic film. The structure, component and surface morphology of anodic film and cross-section were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM) coupled with Energy Dispersive Spectroscopy (EDS). The corrosion behavior was evaluated by immersion test. In this paper, a dense anodic film approximately 20 µm thick was prepared on a AZ91D magnesium alloy through anodic oxidation coating. The results show that the anodic films were mainly composed of Mg17Al12, Mg17La2, MgO and amorphous compounds. The best corrosion resistance was obtained with specimen anodized in solution containing both lanthanum nitrate and magnesium, whose corrosion resistance is approximately 3 times higher than that of as-received AZ91D magnesium alloy. Trans Tech Publications, Switzerland 2012 Article PeerReviewed Zain, M.Z.M. and Illias, S. and Salleh, Mohamed Najib and Ismail, K. Azwan and Nooraizedfiza, Z. (2012) Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy. Applied Mechanics and Materials, 187. pp. 210-214. ISSN 1662-7482 http://doi.org/10.4028/www.scientific.net/AMM.187.210 doi:10.4028/www.scientific.net/AMM.187.210 doi:10.4028/www.scientific.net/AMM.187.210 |
| spellingShingle | TJ Mechanical engineering and machinery Zain, M.Z.M. Illias, S. Salleh, Mohamed Najib Ismail, K. Azwan Nooraizedfiza, Z. Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy |
| title | Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy |
| title_full | Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy |
| title_fullStr | Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy |
| title_full_unstemmed | Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy |
| title_short | Improvement of corrosion resistance of rare earth element (REE)-based anodic oxidation coating on AZ91D magnesium alloy |
| title_sort | improvement of corrosion resistance of rare earth element ree based anodic oxidation coating on az91d magnesium alloy |
| topic | TJ Mechanical engineering and machinery |
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