Accession Number : ADA132582

Title :   The Localized Corrosion of Aluminum Alloys - A Review.

Descriptive Note : Technical progress rept.,

Corporate Author : AMERICAN UNIV WASHINGTON DC DEPT OF CHEMISTRY

Personal Author(s) : Foley,R T

PDF Url : ADA132582

Report Date : Jul 1983

Pagination or Media Count : 62

Abstract : This paper was presented as a keynote address at a conference on the Control and Exploitation of the Corrosion of Aluminum Alloys held at Cranfield, Bedfordshire, England, on April 5-8, 1983. The review was organized by a consideration of the four steps involved in localized corrosion. Adsorption of the rective anion on the oxide covered aluminum. Chemical reaction of the adsorbed anion with the aluminum ion in the aluminum oxide lattice on the precipitated aluminum hydroxide. Thinning of the oxide film by dissolution. The direct attack of the exposed metal by the anion, perhaps, assisted by an anodic potential. The experimental work reported in the literature is evaluated within this framework.

Descriptors :   *Aluminum alloys, *Corrosion, *Literature surveys, Surface reactions, Anions, Oxidation, Chemical reactions, Stress corrosion, Pitting, Metal films, Reports

Subject Categories : Information Science
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE