镁及镁合金环保型阳极氧化电解液及其工艺  

Environmental Friendly Bath Solution and Process for Anodization of Magnesium and Its Alloys

作　　者：张永君[1] 严川伟[1] 王福会[1] 楼翰一[1] 

机构地区：[1]中国科学院金属研究所腐蚀与防护国家重点实验室,辽宁沈阳110016

出　　处：《材料保护》2002年第3期39-40,46,共3页Materials Protection

摘　　要：利用电化学极化技术对经阳极氧化处理的镁试样进行快速评价 ,筛选出无铬、无磷、无氟及其他有毒有害组分 ,而对提高镁耐蚀性效果显著的阳极氧化电解液及其工艺。同时将新工艺的成膜效果与镁阳极氧化经典工艺Dow17和HAE进行了电化学测试和全浸实验。发现 ,两者具有较好的一致性 。Anodizing effects of magnesium and its alloys AZ91D and AM60B were evaluated quickly by using electrochemical polarization technology. An environmental friendly bath solution without chromate, phosphate, fluoride and any injurious ingredients, and a process based on the new bath solution were obtained and could enhance corrosion resistance of magnesium and its alloys efficiently. Compared with the film forming effect by classic processes Dow17 and HAE, the new process was more effective to improve corrosion protection of magnesium and its alloys by consistent results of electrochemistry measurements and total immersion tests.

关 键 词：镁 镁合金 环保型 阳极氧化 电解液 工艺 

分 类 号：TG174.4[金属学及工艺—金属表面处理]