磨擦辅助对电铸镍组织结构的影响  

Effects of Friction on Structure of Ni Electroforming

作　　者：章勇 张福荣[1] 张健[1] 

机构地区：[1]沙洲职业工学院机械动力工程系,江苏张家港215600 [2]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械设计与制造》2017年第11期134-137,共4页Machinery Design & Manufacture

基　　金：江苏省博士后科研资助计划(1402032C);江苏省高校自然科学研究面上项目(16KJB460031);江苏高校"青蓝工程"资助(苏教师[2017]15号)

摘　　要：在电铸镍的过程中,由于电沉积机理的复杂性,电铸层的组织结构受多重工艺参数的影响,且还需解决镍电铸层存在针孔和结瘤等缺陷的问题。采用磨擦辅助电铸技术进行电铸镍,可以有效抑制电铸层缺陷的产生,在设计的试验装置上,制备了不同微观组织结构的镍电铸层。研究了磨擦强弱对镍电铸层的表面形貌、织构等微观结构的影响。结果表明:在磨擦辅助电铸镍过程中,随着阴极表面线速度的提高,游离微珠对电铸层的整平作用和晶粒细化作用相应增强。旋转阴极在不同的线速度条件下,可以制备出大范围不同微观结构的镍电铸层,其晶粒尺寸在(100~600)nm之间。随着阴极速度的提高,镍电铸层各晶面的相对生长速率差别变小。In the process of nickel electroforming, due to the complexity of the electrodeposition mechanism, the microstructure of the electroformed layer is affected by multiple technological parameters, and the pinholes and nodules in the nickel electroforming need to be solved. The application of friction assisted electroforming of nickel can effectively suppress the formation of defects in the electroforming, and the nickel electroforming with different microstructure are prepared. The influence of friction on the surface morphology, texture and microstructure of nickel electroforming was investigated. The results indicate that the surface smoothness is improved and the nickel crystal grain is refined with the increasing linear velocity. The nickel deposits can be obtained with a wide range of microstructure at different speed of the rotating cathode, which the grain size is （100-600）nm. The difference value of growth rate of the various crystal faces is getting smaller with the increasing velocity of the cathode.

关 键 词：电铸 磨擦 微观结构 镍 

分 类 号：TH16[机械工程—机械制造及自动化]