铈盐和镧盐对铝合金阳极氧化膜性能的影响  

EFFECTS OF RARE-EARTH SALTS ON PROPERTIES OF ANODIZING FILM OF ALUMINUM ALLOY

作　　者：王春涛[1] 王国平 龚雅萍[1] 

机构地区：[1]浙江海洋学院工程学院,浙江舟山316004 [2]舟山市劳动局卫生检测站,浙江舟山316000

出　　处：《腐蚀与防护》2003年第6期244-245,248,共3页Corrosion & Protection

摘　　要：通过对铝合金在含有稀土盐的硫酸电解液中进行阳极氧化所得到氧化膜性能的研究 ,发现加入硫酸铈比无稀土盐其厚度、硬度及耐蚀性均好 ,最佳含量为 0 .5 g/L ;硫酸铈和硫酸镧复合稀土盐比单一硫酸铈稀土盐好。The properties of Al alloy oxide films obtained by anodizing in three different H 2SO 4 electrolytes were investigated. The results showed that the film formed in the electrolyte containing single rare earth salt Ce(SO 4) 2 was better in the thickness, hardness and corrosion resistance than that formed in the electrolyte without rare earth salt. The best content of Ce(SO 4) 2 was 0.5g/L. Adding rare earth salt composite of Ce(SO 4) 2 and La 2(SO 4) 3 was better than adding single rare earth salt Ce(SO 4) 2.

关 键 词：铝合金 阳极氧化 稀土 

分 类 号：TG174.4[金属学及工艺—金属表面处理]