环境温度对Zn合金牺牲阳极性能的影响
Influence of Environmental Temperature on Electrochemical Properties of Zn Alloy Sacrificial Anode
华建社, 韩 巍, 刘长瑞
点击：3330次 下载：0次
作者单位：(西安建筑科技大学 冶金工程学院, 陕西 西安 710055)
中文关键字：锌阳极； 温度； 开路电位； 极化曲线； 腐蚀速率
英文关键字：zinc anodes; temperature; OCP; polarization curve; corrosion rate
中文摘要：研究了Zn系合金阳极材料在不同环境介质中其电化学性能的变化，通过分析Zn系合金在3.5%NaCl溶液中的不同温度极化曲线，获得了环境温度对牺牲阳极材料性能影响的基本规律。结果表明，Zn-Al-Cd系合金在常温、50 ℃时，工作情况基本稳定，但当温度高于70 ℃时，Zn-Al-Cd电位比钢铁还高，钢铁腐蚀速率加快，即电位发生逆转，Zn-Al-Cd无法对钢铁再起到保护作用。
英文摘要：The changes of electrochemical properties of Zn alloy anode materials in different environmental media were studied. By analyzing the different temperature polarization curves of Zn department alloy in 3.5%NaCl solution, the basic law of the influence of environmental temperature on Zn alloy sacrificial anode materials was obtained. The results show that Zn-Al-Cd alloy performance at room temperature and 50 ℃ is stable basically. However, when temperature is above 70 ℃, the potential of Zn-Al-Cd is higher than that of the steel. The corrosion rate of the steel is accelerated, so Zn-Al-Cd can't play a protective effect on the steel.