Abstract:
The electrochemical properties of aluminum alloy sacrificial anode were detected by DNV-RP-B401-2011 method and NACE-TM0190-2006 method, and the electrochemical properties and the morphologies of anode dissolution of different aluminum anode components were analyzed under these conditions. The results showed that under the condition of the same chemical composition, the dissolution morphology and electrochemical data of sample 1 were better than those of sample 2, and the electrochemical performance of sample 4 was the best among the three different components of aluminum anode. In the low temperature environment of 2~3℃, due to the weaker reactivity of active elements, the electrochemical properties of aluminum alloy sacrificial anode were more poorly by DNV-RP-B401-2011 accelerated method than those by NACE-TM0190-2006 method. The precise control and uniform distribution of trace elements in the anode had great influence on the electrochemical performance and solubility of the sacrificial anode of aluminum alloy.