Summary
As everyone knows, there is the contradiction of big initial and small mean current density for offshore platform, sometimes the former is twice of the latter. DNV-RP-B401 suggests minimizing the anode size to meet the bigger initial current density, and NACE-RP-0176 recommends utilizing more anodes. This paper introduces a new method to address this problem by wing section sacrificial anode with large surface area at initial period. Experiment results showed that the wing section sacrificial anode can output 30-40% more current density than the long slender stand-off, while L ≥ 4r.
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2016
Association for Materials Protection and Performance (AMPP)
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