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中国腐蚀与防护学报  2009, Vol. 29 Issue (2): 141-144    
  研究报告 本期目录 | 过刊浏览 |
高频脉冲电沉积镍钴合金镀层的硬度研究
许韵华1;曹克宁2;杨玉国1;赵宇1;宫晓静
1.北京交通大学理学院 北京 100044
2.北京卫星制造厂 北京 100081
MICROHARDNESS OF Ni-Co ALLOY PLATED BY HIGH FREQUENCY PULSE CURRENTS
XU Yunhua1;CAO Kening2;YANG Yuguo1;ZHAO Yu1; GONG Xiaojing1
1.School of Sciences; Beijing Jiaotong University; Beijing 100044
2.Beijing Spacecrafts; Beijing 100081
全文: PDF(1286 KB)  
摘要: 

在硫酸盐电解液中,采用脉冲电源电沉积了镍钴合金。研究了电解液中CoSO4的浓度及脉冲参数对镀层中Co含量和镀层显微硬度的影响。采用SEM和XRD研究了镀层的表面形貌和微观结构。结果表明,镀层中的Co含量对镀层硬度有显著影响,当Co含量小于55 mass%时, 镀层的硬度随着Co含量的增加递增。Co含量较低时,合金由面心立方结构(fcc)的固溶体组成。

关键词 高频镍钴合金显微硬度微观结构    
Abstract

Ni-Co alloys were deposited by applying current pulses from a sulfate electrolyte. The effect of the ionic concentration of cobalt in the electrolyte and pulse parameters on the cobalt content in the deposits and the microhardness of the deposits were studied. The morphologies and metallic phases of the alloys were analysed by scanning electron microscope(SEM) and X-ray diffraction(XRD). The results indicated that the cobalt content in alloy deposits had a strong effect on its hardness, and the increase of cobalt content resulted in increasing of the hardness of the deposits. At low cobalt content, pure face centered cubic (fcc) structure was identified.

Key wordsHigh frequency    Ni-Co alloys    Microhardness    Microstructure
收稿日期: 2007-07-02     
ZTFLH: 

TQ153.2

 
基金资助:

国家重点基础研究发展规划项目(2007CB714705)

通讯作者: 许韵华     E-mail: yhxu@bjtu.edu.cn
Corresponding author: XU Yunhua     E-mail: yhxu@bjtu.edu.cn

引用本文:

许韵华 曹克宁 杨玉国 赵宇 宫晓静. 高频脉冲电沉积镍钴合金镀层的硬度研究[J]. 中国腐蚀与防护学报, 2009, 29(2): 141-144.
CAO Ke-Ning. MICROHARDNESS OF Ni-Co ALLOY PLATED BY HIGH FREQUENCY PULSE CURRENTS. J Chin Soc Corr Pro, 2009, 29(2): 141-144.

链接本文:

https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y2009/V29/I2/141

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