Abstract
This study examined the effects of dissolved oxygen on the corrosion properties of aluminum cast alloy, A384, in bio-ethanol blended gasoline fuel at 100 °C. Oxygen enhanced the corrosion resistance of the alloy by forming a protective hydrous oxide film. The acetic acid and water produced by ethanol oxidation in the fuel had a corrosive and protective effect, respectively. However, the protective hydrous oxide film enhanced by the water suppressed the corrosiveness of the acetic acid in the fuel when the two by-products coexisted. Therefore, the water formed by dissolved oxygen in the bio-ethanol blended gasoline fuel enhanced the corrosion resistance of the aluminum alloy by promoting the formation of a protective surface film.
| Original language | English |
|---|---|
| Pages (from-to) | 633-639 |
| Number of pages | 7 |
| Journal | Fuel |
| Volume | 90 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2011 |
Keywords
- Aluminum
- Bio-ethanol-blended fuel
- Ethanol oxidation
- Pitting corrosion
