| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8029885 | Surface and Coatings Technology | 2013 | 8 Pages |
Abstract
Spraying microarc oxidation (SMAO) equipment, consisting of a mini microarc oxidation (MAO) power source and a movable spraying polar, was employed to solve the problem that field repair of local damage area on workpiece and larger workpiece cannot be immersed in the electrolyzer for conventional microarc oxidation (CMAO) process. SMAO coatings were fabricated on the surface of 2024 Al alloy samples using a self-made SMAO equipment system. Electrochemical techniques were employed to evaluate the corrosion resistance of CMAO and SMAO coatings in 3.5Â wt.% NaCl solution. The results indicated that SMAO coating is thinner than CMAO coating under the same experimental conditions. SMAO coating treated for 10Â min can be easily penetrated by the test solution, while treated for 20 and 30Â min, the coatings with much better corrosion resistance can be fabricated.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Lei Wen, Yaming Wang, Ying Jin, Bing Liu, Yu Zhou, Dongbai Sun,