Abstract
The galvanic corrosion behaviours of copper nickel alloy(B10)/low-alloy high strength steel(921A) and commercially pure titanium(TA2)/low-alloy high strength steel (921A) was studied by electrochemical method in seawater with different cathode/anode area ratio(Sc/Sa). Results indicated that 921A is the anode and B10 and TA2 is the cathodes. The Sc/Sa has a significant impact on the galvanic corrosion, galvanic corrosion rate of high potential difference coupling showed linear growth with the Sc/Sa, but had extreme because the galvanic potential shift and driving voltage decreases.
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