MICROSTRUCTURE AND ELECTROCHEMICAL PERFORMANCE OF ALUMINUM ALLOYS FOR SACRIFICIAL ANODE
铝合金牺牲阳极金相组织与电化学性能关系研究

Electrochemical performance of three kinds of Al Zn In alloy anodes have been measured with constant current method,and their microstructures have also been exammed by metallography and scanning electron microscopy (SEM).Results showed that the current efficiency of anodes increased with the decrease of their grain size and the amount of second phase.The current efficiency and dissolution performance of anodes were related to preferential dissolution of secondphase.