Published September 2, 2001 | Version v1
Miscellaneous

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

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

Availability note (English)

Available from OSTI as DE00789439

Additional details

Publishing Information

Imprint Pagination
9 p.
Report number
BNL--68742

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
33068444
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ALUMINIUM; CHROMATES; CHROMIUM; CORROSION INHIBITORS; CORROSION PROTECTION; PITTING CORROSION
Descriptors DEC
CHEMICAL REACTIONS; CHROMIUM COMPOUNDS; CORROSION; ELEMENTS; METALS; OXYGEN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Contract/Grant/Project number
AC02-98CH10886
Funding organization
DOE/SC (United States)
Secondary number(s)
KC--0201020