磨擦辅助对电铸镍组织结构的影响
发布时间：2018-10-15 17:33
【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。
[Abstract]:In the process of electroforming nickel, because of the complexity of electrodeposition mechanism, the structure of electroforming layer is affected by many technological parameters, and the defects of nickel electroforming layer such as pinhole and nodulation need to be solved. Nickel electroforming with friction assisted electroforming technology can effectively inhibit the formation of defects in electroforming layer. Nickel electroforming layer with different microstructure has been prepared on the designed test device. The effect of friction strength on the surface morphology and texture of nickel electroforming layer was studied. The results show that in the process of friction assisted electroforming nickel, with the increase of the linear velocity of cathode surface, the leveling effect and grain refinement effect of free microbeads on electroforming layer are enhanced accordingly. A wide range of nickel electroforming layers with different microstructure can be prepared by rotating cathode at different linear velocities with grain sizes ranging from (100 ~ 600) nm to (100 ~ 600) nm. With the increase of cathode speed, the relative growth rate of nickel electroforming layer becomes smaller.
【作者单位】： 沙洲职业工学院机械动力工程系;南京航空航天大学机电学院;
【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)
【分类号】：TQ153.4
，
本文编号：2273286
[Abstract]:In the process of electroforming nickel, because of the complexity of electrodeposition mechanism, the structure of electroforming layer is affected by many technological parameters, and the defects of nickel electroforming layer such as pinhole and nodulation need to be solved. Nickel electroforming with friction assisted electroforming technology can effectively inhibit the formation of defects in electroforming layer. Nickel electroforming layer with different microstructure has been prepared on the designed test device. The effect of friction strength on the surface morphology and texture of nickel electroforming layer was studied. The results show that in the process of friction assisted electroforming nickel, with the increase of the linear velocity of cathode surface, the leveling effect and grain refinement effect of free microbeads on electroforming layer are enhanced accordingly. A wide range of nickel electroforming layers with different microstructure can be prepared by rotating cathode at different linear velocities with grain sizes ranging from (100 ~ 600) nm to (100 ~ 600) nm. With the increase of cathode speed, the relative growth rate of nickel electroforming layer becomes smaller.
【作者单位】： 沙洲职业工学院机械动力工程系;南京航空航天大学机电学院;
【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)
【分类号】：TQ153.4
，
本文编号：2273286
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