ZHAN Zhongwei,GE Yulin TIAN Lixi*,WANG Shuaixing,et al.Effect of Stirring Speed and Particle Size on the Particle Content in the Ni-cBN Composite Plating and Its Mechanism[J].Plating & Finishing,2022,(1):1-5.[doi:10.3969/j.issn.1001-3849.2022.01.001]
搅拌速度和颗粒尺寸对复合电沉积Ni-cBN复合量的影响及机理分析
- Title:
- Effect of Stirring Speed and Particle Size on the Particle Content in the Ni-cBN Composite Plating and Its Mechanism
- Keywords:
- composite electrodeposition; cBN; nickel; titanium alloy; stirring speed
- 分类号:
- TG174.453
- 文献标志码:
- A
- 摘要:
- 决定金属-陶瓷复合耐磨镀层摩擦学性能最为关键的因素是硬质强化颗粒的尺寸和含量。通过分别选用两种粒径的cBN颗粒，在氨基磺酸镀镍液中电沉积Ni-cBN复合镀层，研究搅拌速度和颗粒粒径对复合量的影响规律，并对其影响机理进行分析。研究结果显示，随搅拌速度的增加，两种粒径的cBN颗粒的复合量均呈现先升高后降低的趋势，且在搅拌速度偏高时，较大粒径cBN颗粒的复合量的下降趋势更加明显。从搅拌速度、颗粒粒径、复合量三者之间的关系分析，颗粒与电沉积金属层之间不是单纯依靠机械结合，两者之间应该存在一定的界面作用力，使得在镀层厚度与颗粒粒径之比很小时，颗粒就能被镀层捕获。
- Abstract:
- Frictional properties of metal-ceramic composite wear-resistant coatings are significantly determined by the size and content of strengthening particles. The effect of stirring speed on the particle content in the Ni-cBN composite plating was investigated in a solution based on nickel sulphamate by using cBN particles with two kinds of particle sizes， and the related mechanism was analyzed. The results showed that， with increasing of stirring speed， the particle content showed an initial rise and then decreased. When the stirring speed was higher， the decrease trend of cBN particles with larger size was more obvious. From the analysis of the relationship along stirring speed， particle size and composite amount， it was found that the ceramic particles were not just mechanically bonded with the electrodeposited metal. There should be interfacial force between them， so that the particles could be captured when the ratio of coating thickness to particle size was very small
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备注/Memo
收稿日期： 2020-12-23 修回日期： 2021-03-08 通信作者： 田礼熙（1983－），男，博士研究生，讲师，email：70682@nchu.edu.cn 基金项目： 江西省自然科学基金面上项目（20192BAB206005）；国家科技重大专项（2017-VII-0012-0109）