烧结NdFeB永磁材料超声电沉积Ni-P合金的研究  

Investigation of ultrasonic electroplating Ni-P coatings on NdFeB permanent magnet

作　　者：李丽[1] 王飞飞[1] 牛宗伟[1] 

机构地区：[1]山东理工大学机械工程学院,山东淄博255049

出　　处：《功能材料》2011年第11期2047-2049,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(510051401-E050902;51105235);山东省自然科学基金资助项目(ZR2009FQ030);山东理工大学青年教师支持计划资助项目(4072-110003)

摘　　要：利用超声辅助电沉积方法,研究了在烧结NdFeB永磁体表面电沉积Ni-P合金的工艺。研究了超声波对NdFeB电沉积Ni-P合金表面形貌和镀层耐蚀性的影响。实验结果表明与无超声场下的Ni-P电沉积层相比,附加超声的电沉积所得Ni-P合金层表面晶粒均匀、细小,排列更为平整,结合力强,耐蚀性较好。Electroplating Ni-P alloys process on sintered NdFeB was studied which involves with ultrasonic.The influence of ultrasonic on electroplating Ni-P alloy on NdFeB was studied by using microscope,adhesion test and NaCl solution immersion test.The results showed that the Ni-P alloy deposit on NdFeB is rough and has poor adhesion without ultrasonic agitation;however,the Ni-P alloy deposit on NdFeB with ultrasonic agitation has more compact and uniform microstructure,smoother morphology.At the same time,the adhesion and corrosion resistance are greatly enhanced.

关 键 词：NDFEB 超声电沉积 NI-P合金 耐蚀性 

分 类 号：TF125[冶金工程—粉末冶金]