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Journal of Materials Science

, Volume 42, Issue 20, pp 8613–8617 | Cite as

Electrochemical characterization of metastable pitting of 3003 aluminum alloy in ethylene glycol–water solution

  • Lin Niu
  • Y. Frank Cheng
Article

Abstract

The corrosion and electrochemical behavior of 3003 aluminum alloy in ethylene glycol–water solution were investigated by electrochemical techniques. It is found that the oxide film formed on aluminum depends on the dissolved oxygen in the solution. In the presence of oxygen, a layer of aluminum oxide film forms on the aluminum surface to protect the substrate from corrosion. In the absence of oxygen, the film formed is mainly aluminum-alcohol film that is less compact and less resistant to corrosion. The aluminum oxide film and aluminum-alcohol film have the different susceptibilities to chloride ion attack for pit initiation. There is a higher pitting susceptibility for aluminum oxide-covered electrode. The increase in temperature decreases the resistance of aluminum electrode to corrosion reaction. However, the resistance to pitting corrosion increases.

Keywords

Aluminum Alloy Electrochemical Impedance Spectroscopy Corrosion Potential Aluminum Oxide Film Electrochemical Impedance Spectroscopy Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This work was supported by Canada Research Chairs Program and Natural Science and Engineering Research Council of Canada (NSERC).

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.School of Chemistry and Chemical EngineeringShandong UniversityJinanChina
  2. 2.Deparment of Mechanical and Manufacturing EngineeringUniversity of CalgaryCalgaryCanada

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