Technical note: Dezincification of alpha-brass in crevices

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3316035· OSTI ID:6213798

Newman, R C; Shahrabi, T ^[1]

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1. UMIST, Manchester (United Kingdom)

An earlier paper showed that dezincification of [alpha]-brass could be monitored electrochemically by simulating the solution that would develop in an anodically polarized cavity and then carrying out a test in this solution at zero volts vs a copper reference electrode. A prediction made from the earlier work was that anodically polarized crevices would have similar characteristics to the simulated crevice solutions and could be used as an alternative electrochemical test for dealloying. This short note describes a series of tests that fulfill this prediction. The test has been developed using [alpha]-brass, but the same concept is applicable to engineering alloys such as aluminum bronzes (dezincification is a rare problem nowadays).

• OSTI ID: 6213798
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 49:1; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
BRASS
BRASS-ALPHA
CHEMICAL REACTIONS
CHEMISTRY
COPPER ALLOYS
COPPER BASE ALLOYS
CORROSION
CREVICE CORROSION
DATA
DEMETALLIZATION
ELECTROCHEMISTRY
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
MATERIALS TESTING
METALS
MONITORING
NUMERICAL DATA
REMOVAL
SEPARATION PROCESSES
TESTING
ZINC
ZINC ALLOYS