| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7895231 | Corrosion Science | 2015 | 29 Pages |
Abstract
The deterioration process of a self-sealing pore micro-arc oxidation (MAO) film was investigated. The surface and cross-section corrosion morphologies were observed by scanning electron microscopy (SEM). Chemical composition was detected by EDS elemental mapping and XRD. The corrosion process was analyzed by electrochemical impedance spectroscopy (EIS). The surface of the film in dark and light regions exhibits different corrosion behavior. In the dark regions, the corrosion process mainly concentrates on the migration of corrosion media through the pores inward. In the light regions, the transverse expansion of cracks plays a key role, accompanying the exfoliation of film constituents.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Kaihui Dong, Yingwei Song, Dayong Shan, En-Hou Han,