稀土对真空熔结镍基复合涂层组织结构的影响  

Effect of Rare Earth on Structure of Vacuum Fusion Sintering Ni-based Metal-ceramic Composite Coating

作　　者：宣天鹏[1] 霍影[1] 闵丹[1] 

机构地区：[1]合肥工业大学材料科学与工程学院

出　　处：《农业机械学报》2006年第11期156-159,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：安徽省"十五"科技攻关项目(项目编号:01012031);合肥市重点科研资助项目(项目编号:2006041)

摘　　要：研究了稀土(Ce+La)对真空熔结镍基金属陶瓷复合涂层化学组成和组织结构的影响。结果表明:稀土(Ce+La)消除了Ni60+WC涂层中的针状相,改变了陶瓷相的分布形态。稀土还改变了涂层的化学组成,提高了组成相中的镍含量和陶瓷相中的钨含量。含稀土的真空熔结镍基金属陶瓷复合涂层还析出了新的第2相WC和LaNi3。The effect of rare earth elements (Ce+La) on chemical composition and structure of the vacuum fusion sintering Ni-based metal-ceramic composite coating was studied in this paper. The results showed that rare earth elements (Ce+La) change the distribution pattern of metal ceramic phase, and dissolve needle phase of the coating. At the same time rare earth elements (Ce+La) change also the chemical component of Ni-based metal-ceramic composite coating, and increase nickel content of every phase and tungsten co...

关 键 词：真空熔结 Ni60+WC复合涂层 稀土(Ce+La) 组织结构 

分 类 号：TG179[金属学及工艺—金属表面处理]