Study of corrosion behavior of sprayed zinc-aluminum (ZAZA) coatings in a marine environment
Zinc-aluminum coatings were prepared; parts of them were sealed with an organic coating; and the behavior and mechanism of corrosion were studied by means of in situ plates test, salt spray test, and electrochemical impedance spectroscopy. A scanning electron microscope was used to assess the surfac...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2012-03-01
|
| Series: | Science and Engineering of Composite Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/secm-2011-0015 |
| Summary: | Zinc-aluminum coatings were prepared; parts of them were sealed with an organic coating; and the behavior and mechanism of corrosion were studied by means of in situ plates test, salt spray test, and electrochemical impedance spectroscopy. A scanning electron microscope was used to assess the surface of the zinc-aluminum coatings, which showed roughness and some defects that would reduce the protective effect. Organic coatings improve the protective effect by sealing the defects of the metal coating. A multilayer structure is not only expensive but would also destroy the continuity of the coating if the zinc corrodes. |
|---|---|
| ISSN: | 0792-1233 2191-0359 |