铁-镍合金摩擦辅助电沉积试验

Abrasive polishing assisted iron-nickel alloy electrodeposition

了提高Fe-Ni合金电沉积的质量,在电铸液中添加硬质粒子,阴极做平动,使硬质粒子不断撞击和摩擦阴极表面。在紫铜板上电沉积制备了Fe-Ni合金电铸层,研究电铸液Fe2+/Ni 2+的浓度比和主要的沉积工艺参数(包括阴极电流密度、温度和阴极平动速度)对电铸层成分的影响以及阴极平动速度对合金电铸层显微硬度的影响。试验结果表明,该方法所得铁镍合金电铸层晶粒致密、成分均匀,硬质粒子摩擦有助于提高铸层显微硬度。

In order to improve the quality of the Fe-Ni alloy electrodeposition, the cathode moves in the plating solution which was filled with hard particles, making the hard particles continuously polish the deposition surface. A Fe-Ni alloy electroforming layer has been prepared on red copper by electrodepositiorL We also explored the effects of the concentration ratio of Fe^2＋ to Ni^2＋ and the main processing parameters, including cathodic current density, temperature and cathode translational speed, on the alloy＇s composition, as well as the influence of cathode translational speed on the microhardness of electroforming layer. The results showed that the grains of the electroforming layer have been refined and the composition has been uniformed. The cathode＇s highspeed orbital movement is helpful to improve the microhardness of the electroforming layer.