|
| Study of Cadmium Electroplates′Corrosion Behavior in Marine Atmosphere |
| Received:August 06, 2012 Revised:January 01, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:Cd electroplate marine atmosphere passive film with Cr corrosion product film EIS |
| Author | Institution |
| LI Ming |
China Aero-polytechnology Establishment，Beijing，China |
| LI Min-wei |
China Aero-polytechnology Establishment，Beijing，China |
| MA Ying |
China Aero-polytechnology Establishment，Beijing，China |
| FU Yun |
China Aero-polytechnology Establishment，Beijing，China |
|
| Hits: |
| Download times: |
| Abstract: |
| The corrosion behavior of Cd electroplates in marine atmosphere of south China was studied by natural environmental test. The surface and corrosion morphology of Cd electroplates was examined by scanning electron microscopy (SEM). The micro-structures of Cd electroplate and their changes during natural exposure were characterized and analyzed by using electrochemical impedance spectroscopy (EIS). The corrosion mechanism of Cd electroplate in marine atmosphere was analyzed. It was founded that localized breaking of passive films with Cr and corrosion of Cd electroplate base are involved in the whole process. The Cd corrosion product film can restrain corrosion′s extending effectively. Compared to the open air near the coast,outdoor of marine platform with higher humidity and salt can penetrate the passive films with Cr more easily, causing Cd electroplates more serious corrosion. |
| Close |