Influence of Ti on the Electrochemical Behavior of Al-Zn-In-Si Sacrificial Anodes

Abstract:

Aluminum alloy is well-known as a sacrificial anode material which can provide higher-electrochemical capacities than other types of sacrificial anodes. Al-Zn-In-Si alloys are primarily used to protect steel structures for marine application. The electrochemical behaviors of aluminum sacrificial anodes were investigated using experimental set-up conformed to NACE standard TM0190-2012. The electrochemical capacity of Al-5 wt% Zn-0.015 wt% In-0.1 wt% Si alloy is about 2,600 Ah/kg. The results indicate that the electrochemical capacities of Al-Zn-In-Si based alloys are improved by addition of Ti. Al-5 wt% Zn-0.015 wt% In-0.1 wt% Si alloy with Ti addition can provide higher-electrochemical capacities up to 2,747 Ah/kg.

• Periodical: Key Engineering Materials (Volume 728)
• Pages: 15-19
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.728.15
• Online since: January 2017
• Authors: Kaweewat Worasaen, Pinai Mungsantisuk*
• Keywords: Aluminum Anode, Cathodic Protection, Electrochemical Capacity, Sacrificial Anode

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