| 热海水中热浸镀用锌及锌铝合金的电化学性能 |
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| 引用本文： | 李鑫,杜鸿雁,魏绪钧,李焰. 热海水中热浸镀用锌及锌铝合金的电化学性能[J]. 东北大学学报(自然科学版), 2005, 26(11): 82-85. DOI: - |
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| 作者姓名： | 李鑫 杜鸿雁 魏绪钧 李焰 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110004;重庆大学,化学化工学院,重庆,400044;中国科学院海洋研究所,山东,青岛,266071 |
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| 基金项目： | 中国科学院资助项目，山东省青岛市自然科学基金 |
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| 摘 要： | 为了定量比较不同热浸镀层用金属(或合金)在热海水中对钢铁基体的阴极保护作用,参照国标GB/T 17848-1999的要求对几种典型的热浸镀用锌及锌铝合金测试了50℃条件下的恒电流性能,计算了电流效率,观察了腐蚀产物脱落情况及腐蚀均匀性,并据此评价了它们的电化学保护性能.结果表明:Zn的电化学性能最好,Zn-55Al-1.6Si合金的电化学性能最差,Zn-5Al-0.1RE,Zn-5Al-0.5Mg,Zn-6Al-3Mg,Zn-11Al-0.2Si-3Mg,Zn-25Al-0.2Si-0.2Mg和Zn-25Al-0.2Si-0.2RE合金介于二者之间.
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| 关 键 词： | 热浸镀 热浸镀层 阴极保护 牺牲阳极 电流效率 电化学性能 |
| 文章编号： | 1005-3026（2005）11-1099-04 |
| 收稿时间： | 2005-01-07 |
| 修稿时间： | 2005-01-07 |
Electrochemical Properties of Zn/Zn-Al Alloys as Hot-Dip Galvanized Coating Protecting Steel in Hot Seawater |
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| LI Xin,DU Hong-yan,WEI Xu-jun,LI Yan. Electrochemical Properties of Zn/Zn-Al Alloys as Hot-Dip Galvanized Coating Protecting Steel in Hot Seawater[J]. Journal of Northeastern University(Natural Science), 2005, 26(11): 82-85. DOI: - |
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| Authors: | LI Xin DU Hong-yan WEI Xu-jun LI Yan |
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| Affiliation: | (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China; (3) Institute of Oceanology, Chinese Academy of Science, Qingdao 266071, China |
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| Abstract: | To compare quantitatively the cathodic protection effects of Zn and several Zn-Al alloys as hot-dip galvanized coating materials on steel in 50°C seawater, their electrochemical properties were tested with constant current, according to the China national standard GB/T 17848-1999. Their current efficiencies were then calculated with surface's corrosive peeling and homogeneity observed. Thus, their effects of anti-corrosion protection were evaluated. The results showed that the electrochemical properties of such zinc-aluminum alloys as Zn-5Al-0.1RE, Zn-5Al-0.5Mg, Zn-6Al-3Mg, Zn-11Al-0.2Si-3Mg, Zn-25Al-0.2Si-0.2Mg and Zn-25Al-0.2Si-0.2RE are medium, while Zn is the best and Zn-55Al-1.6Si alloy the poorest one. |
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| Keywords: | hot-dip galvanization coating cathodic protection sacrificial anode current efficiency electrochemical property |
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