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.
Long-term performance of aluminum anodes in seawater and marine soil
Materials Performance ; 38 , 1 ; 34-39
1999
6 Seiten, 6 Quellen
Article (Journal)
English
Testing of sacrificial anodes in seawater
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