Publisher : The Korean Institute of Surface Engineering
DOI : 10.5695/JKISE.2013.46.3.120
Title & Authors
Damage Protection Technology by Potentiostatic Method of Cu Alloy Under Cavitation Environment in Seawater Kim, Seong-Jong; Park, Jae-Cheul; Jang, Seok-Ki;
This investigation was to identify the electrochemical corrosion protection conditions to minimize the cavitation damage by generating hydrogen gas with the means of hydrogen overvoltage before the impact pressure of the cavity is transferred to the surface. The hybrid potentiostatic test method is designed to evaluate a complexed cavitation and electrochemical characteristic for ALBC3 alloy that is diverse and its broad applications fields in marine industry. The surface observation showed that neither the cavitation damage nor the electrochemical damage by the hydrogen gas generation occurred in the potential of -2.6 V under the cavitation environment. In the potentiostatic experiments under the cavitation environment, the cavities were reflected or cancelled out by the collision of the cavities with the hydrogen gas generated by the hydrogen overvoltage.
Hydrogen overvoltage;Complexed cavitation and electrochemical characteristic;Hybrid potentiostatic test method;ALBC3 alloy;Marine industry;
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