化学镀Ni-B合金镀层的微观结构  

Microstructure of electroless Ni-B alloy deposits

作　　者：陈儒军[1,2] 伍翠兰[2] 潘建新[3] 刘恺[2] 

机构地区：[1]长沙航空职业技术学院机械制造工程系,湖南长沙410124 [2]湖南大学材料学院,湖南长沙410082 [3]湖南科技职业学院机电工程系,湖南长沙410004

出　　处：《金属热处理》2011年第7期88-91,共4页Heat Treatment of Metals

基　　金：湖南省教育厅科学资助项目(10C0177);2010年湖南省科技厅科技计划项目(2010CK3034)

摘　　要：采用XRD和TEM方法研究了5种化学镀N i-B合金镀层镀态下的微观组织结构,以及还原剂KBH4含量对镀层微观组织的影响。XRD分析表明,N i-B合金镀层主要为非晶态结构。TEM分析表明,N i-B合金镀层为非晶与纳米晶组合的混晶态结构,而且随镀液中KBH4含量的增加,N i-B合金镀层中的非晶态组织增加,纳米晶态组织减少,经历由纳米晶态→混晶态→非晶态的转变过程。采用XRD和TEM相结合方式,才得到准确的分析结果。The microstructure of five kinds of electro-less Ni-B deposit were researched by using XRD and TEM,the effect of concentration of reducing agent KBH4 on microstructure of Ni-B alloy deposits was investigated as well.Ni-B alloy deposits exhibit a non-crystal structure by XRD analysis and a mix crystal structure composed of nano-crystal structure and amorphous structure by TEM analysis.TEM analysis also shows that the amorphous microstructure increases,the nano-crystal microstructure decreases,and the structure of electro-less deposit experiences the transform of nanometer state to mischcrystal state to non-crystalline state with the increasing of concentration of KBH4 in the bath of Ni-B alloy deposits.Only by using XRD and TEM analysis together while researching the microstructure of electroless Ni-B alloy deposits can obtain the correct results.

关 键 词：化学镀 Ni-B合金 微观结构 

分 类 号：TG111.5[金属学及工艺—物理冶金]