Abstract
Anodic oxide film was obtained by different anodizing time. The anodic oxide film was studied by using scanning electron microscopy (SEM), electron probe, continuity test, electrochemical impedance spectroscopy (EIS) and salt spray corrosion tests. It is shown that some cracks present in the sealed anodic oxide film of different oxidation time after the thermal shock, but the cracks hardly penetrate through the film. With the increasing oxidation time, the density of cracks in anodic oxide film increases after the thermal shock. Considering the cracking behavior and corrosion resistance of oxide films on different oxidation, anodic oxide film obtained at 30 min has the best corrosion resistance after the thermal shock.
| Original language | English |
|---|---|
| Pages (from-to) | 159-164 |
| Number of pages | 6 |
| Journal | Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment |
| Volume | 36 |
| Issue number | 3 |
| State | Published - 25 Mar 2015 |
Keywords
- Anodic oxide film
- Corrosion resistance
- Cracks
- The thermal shock
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