轧制温度和道次变形量对铝阳极Al-Mg-Sn-Bi-Ga-In性能的影响  

Effect of rolling temperature and pass deformation on Al anode Al-Mg-Sn-Bi-Ga-In performances

作　　者：梁叔全[1] 官迪凯[1] 毛志伟[1] 张勇[1] 潘安强[1] 唐艳[1] 

机构地区：[1]中南大学材料科学与工程学院,湖南长沙410083

出　　处：《中南大学学报（自然科学版）》2010年第3期906-911,共6页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(50774097);国家自然科学基金创新研究群体科学基金资助项目(50721003)

摘　　要：采用析氢测量法、计时-电位法(E-T曲线)、Tafel曲线、扫描电镜和能谱分析等分析测试方法研究不同轧制工艺的Al-Mg-Sn-Bi-Ga-In铝合金阳极在80℃、在浓度为5mol/L NaOH电解液中添加缓蚀剂Na2SnO3的电化学性能和耐腐蚀性能。研究结果表明:按道次变形量40%进行轧制时,随着轧制温度的升高,开路电位负移,而活性和耐腐蚀性能先提高后降低;在370℃进行轧制时,随着道次变形量增大,开路电位正移,活性逐渐降低,而耐腐蚀性能先提高后降低;在370℃,按道次变形量40%进行轧制时,铝合金阳极的综合性能最佳。Modern examination techniques such as hydrogen production test,galvanodynamic （E-T curves） methods,Tafel curves,scanning electron microscope and energy spectrum analysis were applied to analyze the electrochemical properties of Al alloys anode through different rolling processes in alkaline solution （80 ℃ ,Na2SnO3＋5 mol/L NaOH）. The results show that under 40% pass deformation,with the increase of the rolling temperature,the open-circuit potential falls,but the anti-corrosion properties and electrochemical activity first increase and then decrease; at the rolling temperature of 370 ℃ ,with the increase of pass deformation,the open-circuit potential increases and electrochemical activity gradually decreases,and at the same time the anti-corrosion properties first decreases and then increases; at 370 ℃ ,under 40% pass deformation,Al alloy anode has the best comprehensive property.

关 键 词：铝合金 阳极 轧制 缓蚀剂 电化学性能 耐腐蚀性能 

分 类 号：TM911.41[电气工程—电力电子与电力传动]