Accession Number:

ADA456215

Title:

Mechanism and Inhibition of Oxygen Reduction on Light Weight Alloys

Descriptive Note:

Final rept. 1 Jul-31 Dec 2005

Corporate Author:

OHIO STATE UNIV COLUMBUS DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

2006-07-01

Pagination or Media Count:

11.0

Abstract:

Inhibition of oxygen reduction is a very effective means for reducing corrosion of Al alloys and many other materials. The oxygen reduction reaction is quite complex, and very dependent on the existence of catalytic sites on the metallic surface. Recent projects on Al corrosion and inhibition have identified the importance of oxygen reduction, but have not elucidated the mechanism or the most effective means for its inhibition. The work proposed herein is not intended to comprehensively examine oxygen reduction, but it is directed toward identifying which aspects of an alloy promote O2 reduction. Once the nature of catalytic sites is understood, it should be possible to rationally select inhibitors that are effective for corrosion protection, as well as cost effective and environmentally more benign than chromate.

Subject Categories:

  • Inorganic Chemistry
  • Metallurgy and Metallography
  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE