Long-term performance of aluminum anodes in seawater and marine soil

Journal Article · Fri Jan 01 04:00:00 EST 1999 · Materials Performance

OSTI ID:6441085

Baptista, W; Costa, J C.M. da ^[1]

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1. PETROBRAS (Brazil)

Four manufacturers' aluminum sacrificial anodes protecting bare steel specimens were exposed for 6 months in seawater and two types of marine soil to determine their relative electrochemical efficiencies. The operating potentials and currents, and the electrochemical efficiencies of each anode were measured. A cathodic protection system with aluminum and zinc anodes to protect the same cathode also was tested, in a protection system with aluminum and zinc, the zinc anodes became passivated.

• OSTI ID: 6441085
• Journal Information: Materials Performance, Journal Name: Materials Performance Vol. 38:1; ISSN MTPFBI; ISSN 0094-1492
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
423000 -- Engineering-- Marine Engineering-- (1980-)
ALLOYS
ALUMINIUM
ANODES
CATHODIC PROTECTION
CORROSION PROTECTION
CURRENTS
ELECTRIC CURRENTS
ELECTRODES
ELEMENTS
FIELD TESTS
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
METALS
OFFSHORE PLATFORMS
OXYGEN COMPOUNDS
SEAWATER
SOILS
STEELS
TESTING
WATER
ZINC