固溶处理对Al_Zn_In阳极元素分布和电化学性能的影响_齐公台固溶处理对Al_Zn_In阳极元素分布和电化学性能的影响_齐公台.pdf

第 30卷 第1期 材 料 热 处 理 学 报 Vol . 3 0 No . 1 2 0 0 9 年 2 月 TRANSACTIONS OF MATERIALS AND HEAT TREATMENT February 2 00 9 固溶处理对 A-l Zn-In 阳极元素分布和电化学性能的影响 齐公台, 邱于兵, 蔡启舟, 冉 伟 ( 华中科技大学化学与化工学院, 湖北 武汉 430074) 摘 要: 对 A-l 2Zn- 0103In 阳极分别进行/ 510e @ 10h+ 空气冷却0和/ 510e @ 10h+ 水冷却0 处 理, 采 用电子探针 ( EPMA) 和能谱 分 析, 考察了主要析出相形貌和成分的变化, 测定了铝阳极的基本电化学性能。结果表明: 固溶处理使铝阳极晶内和晶 界析出物 中 的 Zn 含量降低而 Fe、Si 被保留, A-l Zn 金属间化合物数量减少, 晶界 析出物 发生断 裂、球 化现象。基 体中 Zn 的增加 和晶界 A-l Zn 化合物数量减少削弱了铝阳极析氢腐蚀和晶间腐蚀, 使铝合金阳极电流效率提高。 关键词: 铝合金; 牺牲阳极; 固溶处理; 显微组织; 电化学 性能 中图分类号: TG14612; TG156194 文献标识码: A 文章编号: 1009- 6264( 2009) 01-0075- 05 Influence of heat treatment on elements distribution and electrochemical properties of A-l Zn-In anode QI Gong-tai, QIU Yu-bing, CAI Q-i zhou, RAN Wei ( School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China) Abstract:The A-l 5Zn- 0103In alloy anodes were treated at 510 e for 10h, and then were cooled by air or water, respectively. A JXA- 8800 electron probe microanalyzer and an EDAX quantitative energy dispersive X- ray analyser were used to examine the microstructure of the anodes before and after heat treatment, and electrochemical properties of the anodes were tested. By heat treatment, the solubility of Zn in aluminum is increased and that of Fe and Zn is retained un- change, the quantity of A-l Zn metallic compounds is evidently decreased, the strip prec