电解液中Ce(NO_3)_3/Ce_2(SO_4)_3的含量对Ti6Al4V合金微弧氧化膜层特性的影响  

The Effect of Ce(NO_3)_3/Ce_2(SO_4)_3 Content in Electrolyte on the Characteristics of Ceramic Coating Formed on Ti6Al4V by Micro-arc Process

作　　者：张雅萍[1,2,3] 刘向东[1,2] 吕凯[1,2] 乌迪[1] 南海[4] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051 [2]内蒙古工业大学内蒙古自治区材料成型及控制工程重点实验室,内蒙古呼和浩特010051 [3]内蒙古化工职业学院,内蒙古呼和浩特010011 [4]北京航空材料研究院,北京100095

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2011年第2期145-150,共6页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：内蒙古自治区人才开发基金项目(200805)

摘　　要：在硅酸钠-氢氧化钠电解液中以Na5P3O10作为稳定剂,通过改变Ce(NO3)3/Ce2(SO4)3的含量对Ti6Al4V合金进行微弧氧化,用XRD、SEM、EDS对试样表面所获得的氧化膜进行表征,并研究电解液中不同Ce(NO3)3/Ce2(SO4)3含量对氧化膜表面形貌的影响.结果表明,随着电解液中Ce3+的加入量增加到0.3 g/L,氧化膜表面的致密性减小,在此基础上加入0.5 g/L的Na5P3O10时,氧化膜致密性增加.EDS分析结果显示,膜层含有Ti、Na、Al、Si、P、O及Ce等元素;XRD分析结果表明,氧化膜的相组成为Ti、锐钛矿以及金红石.Ceramic coatings were obtained by micro-arc oxidation on the surface of Ti6Al4V alloy in sodium silicate and sodium hydroxide electrolyte under different content of Ce（NO3）3/Ce2（SO4）3.The effects of Ce（NO3）3/Ce2（SO4）3 contents of in electrolyte on the characteristics of MAO coating were investigated.The thickness of the coatings was measured.The surface morphology of the coatings was observed by SEM and phase compositions were analyzed by XRD.The results reveal that the compactness of the coating decreases with Ce3＋ content being increased to 0.3g/L in the electrolyte.However,the addition of 0.5g/L Na5P3O10 could increase compactness of the coating.The EDS analysis shows that the coatings are composed by Ti,Na,Al,Si,P,O and Ce.The coatings formed in the electrolyte contained Ce3＋ are composed by Ti,rutile and anatase phase.

关 键 词：TI6AL4V CE 微弧氧化 电解液 陶瓷层 

分 类 号：TG174.4[金属学及工艺—金属表面处理]