施加超声波电沉积制备Co-Ni合金层  

Preparation of Co-Ni Alloy Coatings by Ultrasound Electrodeposition

作　　者：盛敏奇[1,2] 钟庆东[2] 吕臣凯[1] 万康[1] 

机构地区：[1]苏州大学沙钢钢铁学院,苏州215021 [2]上海大学上海市现代冶金与材料制备重点实验室,上海200072

出　　处：《材料研究学报》2013年第3期267-272,共6页Chinese Journal of Materials Research

基　　金：国家自然科学基金(51204115;50615024);新世纪优秀人才支持计划(NCET-07-0536)资助项目~~

摘　　要：研究了超声波(100 W,100 kHz)对电沉积Co-Ni合金层的结构、形貌和性能的影响。结果表明:施加超声波可有效降低电沉积过程中浓差扩散的影响,促进阴极表面与镀液界面间的电子转移。超声波可降低Co-Ni合金层的Co含量并细化晶粒,使Co-Ni合金层更为平整。超声波影响Co-Ni合金层结构和形貌,可提高Co-Ni合金层的硬度以及在3.5%NaCl溶液中的耐腐蚀性。The effects of ultrasound agitation （100 W, 100 kHz） on the structure, morphology and prop- erties of electrodeposited Co-Ni alloy coatings were investigated in this paper. The result shows that： when ultrasonic agitation was used during the alloy coating electrodeposition, the concentration diffusion was effectively reduced, and the electron transfer between the cathode/solution interface was also pro- moted. Ultrasound agitation leads to the increase of Co content in alloy coating. The Co-Ni alloy coating deposited under ultrasound agitation is more fine-grained and uniform. The ultrasound agitation can lead to the enhancement of hardness and corrosion resistance properties of Co-Ni alloy coatings.

关 键 词：材料失效与保护 Co-Ni合金层 电沉积 静态 超声波 电化学 

分 类 号：TB304[一般工业技术—材料科学与工程]