摘要
目的研究三种不同成分Al-Zn-In系铝合金牺牲阳极在常规海水环境中的电化学性能。方法使用牺牲阳极电流效率测试和表面形貌观察等方法。结果三种不同成分铝合金牺牲阳极的电流效率均超过了90%,其中成分3的阳极表面溶解最均匀,呈现均匀溶解形貌,并且未见明显的腐蚀坑和晶间腐蚀现象。结论Al-Zn-In系铝合金牺牲阳极中,加入一定量的In、Zn和适量的Si,可以提高牺牲阳极的电化学性能,三种不同成分Al-Zn-In系铝合金牺牲阳极中,成分3牺牲阳极具有最优异的电化学性能。
Objective To study the electrochemical performances of three Al-Zn-In aluminum alloy sacrificial anodes with different compositions in conventional seawater environment.Methods Sacrificial Anode current efficiency test and surface morphology observation were used.Results The current efficiency of three aluminum alloy sacrificial anodes with different components was all over 90%.The surface dissolution of aluminum alloy sacrificial anode of component 3 was the most uniform,showed uniform dissolution morphology with no obvious pitting and intergranular corrosion.Conclusion The electrochemical performance of Al-Zn-In sacrificial anode can be improved by adding adequate amount of In,Zn and moderate Si elements.Among three Al-Zn-In sacrificial anodes with different composition,the electrochemical performance of sacrificial anode with component 3 is the best.
作者
张国庆
钱思成
张有慧
郑志建
杨朝晖
陆文萍
孙天翔
ZHANG Guo-qing;QIAN Si-cheng;ZHANG You-hui;ZHENG Zhi-jian;YANG Zhao-hui;LU Wen-ping;SUN Tian-xiang(Offshore Oil Engineering Co.,Ltd,Tianjin 300450,China;Offshore Oil Engineering (Qingdao) Co.,Ltd,Qingdao 266520,China;NCS Testing Technology Co.,Ltd,Qingdao 266071,China)
出处
《装备环境工程》
CAS
2019年第8期1-6,共6页
Equipment Environmental Engineering
基金
国家科技基础条件平台专题基金
国家自然科学基金（51771057）
关键词
铝合金牺牲阳极
电化学性能
电流效率
腐蚀
aluminum alloy sacrificial anode
electrochemical properties
current efficiency
corrosion
