Electrochemical Performance of Al-Zn-In-Si Sacrificial Anode Material

The electrochemical performance of 9 types of Al-Zn-In-Si sacrificial anode materials with different amounts of Zn, In, Si and Fe were studied in natural seawater. The test results showed that the electrochemical performance of Al-Zn-In-Si meets and exceeds the national standard. The composition of Al-Zn-In-Si anode was optimized through orthogonal test. The optimum contents of alloy elements were as follows: Zn 5.5%; In 0.020%; Si 0.11%; Fe 0.12%.