铁离子对高纯铝箔直流腐蚀行为的影响  

Influence of Iron Ions on Behavior of High Purity Aluminum Foil DC Etching

作　　者：孙贤[1] 程金科[1] SUN Xian;CHENG Jin-ke

机构地区：[1]贵州大学化学与化工学院,贵阳550025

出　　处：《铝加工》2017年第4期46-49,共4页Aluminium Fabrication

摘　　要：采用盐酸-硫酸直流腐蚀体系,分别探讨了三价铁、二价铁以及它们的混合添加对铝箔腐蚀的影响。结果表明,三价铁加入时,对铝箔点蚀有较小的影响。二价铁加入时,点蚀密度有一定的增大,但不均匀。三价铁和二价铁同时加入时,由于三价铁离子的存在,两者形成竞争关系,蚀孔密度显得均匀。三价铁、二价铁的混合加入能改善铝箔腐蚀形貌,产生密集均匀的腐蚀孔,增大比容。Using hydrochloric acid-sufuric acid DC etching system,the influences of mix add of Fe3+and Fe2+on the aluminum foils corrosion are discussed respectively,by SEM taking micro-analysis.The results show that it has small influence on pitting corrosion when adding Fe3+;when adding Fe2+,it has restricted ability of increasing pitting corrosion ratio;when adding Fe3+and Fe2+,the corrosion rate and corrosion pore density were increased relatively;all existence of Fe3+and Fe2+can improve corrosion morphology of aluminum foil,produce dense and uniform corrosion holes,make the volume increased.

关 键 词：铝箔 直流腐蚀 铁离子 点蚀 比容 

分 类 号：TG178[金属学及工艺—金属表面处理]