Electrochemical test for predicting microbiologically influenced corrosion of aluminum and AA 7005 alloy

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3293527· OSTI ID:6934399

Ayllon, E S ^[1]; Rosales, B M ^[2]

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1. Ceicor-Citefa/Conicet, Buenos Aires (Argentina)
2. Consejo Nacional de Investigaciones Cientificas y Tecnicas, Buenos Aires (Argentina)

The susceptibility of pure aluminum (Al) and Aluminum Association (AA) 7005 alloy (UNS A97005) to pitting by microbiologically influenced corrosion (MIC) in an integral jet fuel tank was determined through polarization measurements. Usually, the most corrosive reported species is the fungus Hormonconis resinae. The effect of its proliferation on pure Al and AA 7005-T6 alloy was studied through anodic and cathodic potentiodynamic polarization. The type and relative amount of corrosion damage to the metal were determined. Morphology of the attack was analyzed by scanning electron microscopy (SEM). Distribution of the alloying elements was determined using energy dispersive x-ray analysis (EDXA).

• OSTI ID: 6934399
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 50:8; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
AIRCRAFT
ALLOYS
ALUMINIUM
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
BIOLOGICAL FOULING
CHEMICAL REACTIONS
CORROSION
ELEMENTS
FOULING
FUELS
FUNGI
JET ENGINE FUELS
LIQUID FUELS
MEASURING METHODS
METALS
PITTING CORROSION
PLANTS
TROPICAL REGIONS