| 稀土元素和固溶处理对Al阳极电化学性能的影响 |
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| 引用本文： | 屈钧娥,齐公台,张磊. 稀土元素和固溶处理对Al阳极电化学性能的影响[J]. 腐蚀科学与防护技术, 2002, 14(3): 169-171 |
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| 作者姓名： | 屈钧娥 齐公台 张磊 |
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| 作者单位： | 华中科技大学化学系,武汉,430074 |
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| 摘 要： | 对Al-Zn-In-Sn-Mg和Al-Zn-In-Sn-Mg-RE 2种Al合金 阳极进行固溶处理，测定了经固溶处理和未经固溶处理的阳极在20℃和65℃的3%NaCl溶液中 的电化学性能 .结果表明,高温下Al阳极电流效率普遍下降，腐蚀变得不均匀;添加RE的固 溶处理阳极在65℃时性能优良；固溶处理可改善Al阳极在高温介质中的性能.讨论了RE及固 溶处理对高温介质中Al阳极性能的影响.
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| 关 键 词： | Al合金 牺牲阳极 稀土元素 固溶处理 |
| 文章编号： | 1002-6495(2002)03-0169-03 |
| 修稿时间： | 2001-04-29 |
EFFECTS OF RE AND SOLUTION- TREATMENT ON ELECTROCHEMICAL PERFORMANCE OF ALUMINUM ANODES |
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| Abstract: | Al-Zn-In-Sn-Mg and Al-Zn-In-Sn-Mg-RE alloy anodes ha ve been solution-treated,the electrochemical performance of the treated and untr eated sacrificial anodes in 3% NaCl solutions have been studied at 20℃ and 65 ℃ respectively.The result shows that the current effiency of anodes has the co mmon tendency to decrease and the surface dissolution characteristics becomes uneven with the t emperature increasing.Addition of RE to the anodes and solution-treatment can he lp to get more excellent performance.Solution-treatment has a positive effect on improving the performance of aluminum anodes especially for those working in so lutions at elevated temperature. |
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| Keywords: | aluminum alloy sacrificial anodes rare earth element(RE) solution treatment |
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