CHROMATE INHIBITION OF THE LOCALIZED CORROSION OF ALUMINUM: MEASUREMENTS OF ELECTROCHEMICAL TRANSIENTS.

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We investigated the inhibition by chromate ions of the localized corrosion of aluminum by electrochemical transient measurements. In agreement with other work, the measurements demonstrated that chromate is a cathodic inhibitor for aluminum in open circuit. The reduction of hexavalent chromium to trivalent chromium is assumed to take place on catalyzed sites of the surface. The resulting products inhibit oxygen reduction reactions at these sites, thereby retarding pitting corrosion.

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9 pages

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SASAKI,K. & ISAACS,H.S. September 2, 2001.

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Description

We investigated the inhibition by chromate ions of the localized corrosion of aluminum by electrochemical transient measurements. In agreement with other work, the measurements demonstrated that chromate is a cathodic inhibitor for aluminum in open circuit. The reduction of hexavalent chromium to trivalent chromium is assumed to take place on catalyzed sites of the surface. The resulting products inhibit oxygen reduction reactions at these sites, thereby retarding pitting corrosion.

Physical Description

9 pages

Notes

OSTI as DE00789439

Source

  • 200TH MEETING OF THE ELECTROCHEMICAL SOCIETY, INC., AND THE 52ND MEETING OF THE INTERNATIONAL SOCIETY OF ELECTROCHEMISTRY, SAN FRANCISCO, CA (US), 09/02/2001--09/07/2001

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  • Report No.: BNL--68742
  • Report No.: KC0201020
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 789439
  • Archival Resource Key: ark:/67531/metadc722348

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  • September 2, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • Nov. 7, 2016, 3:43 p.m.

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SASAKI,K. & ISAACS,H.S. CHROMATE INHIBITION OF THE LOCALIZED CORROSION OF ALUMINUM: MEASUREMENTS OF ELECTROCHEMICAL TRANSIENTS., article, September 2, 2001; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc722348/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.