恒定磁场下用脉冲电沉积法制备金刚石工具的实验研究  

Research on Preparation Experiment of Diamond Tool by Pulse Electrodeposition in Static Magnetic Field

作　　者：曹永娣[1] 黄志伟[1] 

机构地区：[1]黄河水利职业技术学院,河南开封475004

出　　处：《黄河水利职业技术学院学报》2017年第3期47-50,共4页Journal of Yellow River Conservancy Technical Institute

基　　金：2016年度黄河水利职业技术学院科研基金资助项目:外加恒定磁场对改进电镀金刚石工具使用性能的研究(2016KXJS011)

摘　　要：在采用脉冲电沉积制备纳米镍-钴合金镀层的过程中,引入外加恒定磁场,磁场方向与电场方向垂直。采用扫描电镜和X射线衍射观察的结果表明:恒定磁场的引入可使镀层表面晶粒细化,让纳米镍-钴合金镀层表面更平整、致密;在外加磁场电压为7 V时,镀层硬度达到最大值583 HV,比无磁场影响制得的镀层硬度值提高了112 HV。在外加磁场电压为7 V时,脉冲电沉积制备的金刚石工具比无磁场制备的金刚石工具使用寿命提高了21%。Nanometer Ni-Co alloy coating is prepared by pulse electrodeposition in external static magnetic field. The external static magnetic field is vertical to the electric field orientation. The result by using the scanning electron microscope and X-ray diffractrometry shows that static magnetic field is introduced to re- fine the crystal grain size of the plating, making the nanometer Ni-Co alloy coating becomes smooth and compact. When the applied voltage is 7V with static magnetic field, the hardness of coating will reach the maximum value 583HV. The hardness of coating with the static magnetic field was raised by l l2HV as that without the magnetic field applied. The service life of the diamond tool of 7V static magnetic field is 1.21times as that of the tools without magnetic field applied.

关 键 词：脉冲电沉积 金刚石工具 纳米镍-钴合金 恒定磁场 

分 类 号：TQ153[化学工程—电化学工业]