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中国腐蚀与防护学报  2021, Vol. 41 Issue (5): 579-584    DOI: 10.11902/1005.4537.2020.198
  研究报告 本期目录 | 过刊浏览 |
微米级SiC/Ni-Co-P复合镀层的制备及影响因素
张陈扬1, 刘慧丛1, 韩东晓2, 朱立群1, 李卫平1()
1.北京航空航天大学材料科学与工程学院 北京 100191
2.北京航天新立科技有限公司 北京 100039
Preparation of Micron SiC/Ni-Co-P Composite Coatings and Influencing Factors
ZHANG Chenyang1, LIU Huicong1, HAN Dongxiao2, ZHU Liqun1, LI Weiping1()
1.School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2.Beijing Shiny Tech. Co. Ltd. , Beijing 100039, China
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摘要: 

对微米级SiC/Ni-Co-P复合镀层用作代铬镀层进行了研究。采用恒电流沉积的方法在钢片上成功制备了微米级SiC/Ni-Co-P复合镀层。采用单因素实验分别讨论电镀液组成对镀层宏观形貌、微观形貌、复合量、硬度等的影响,获得硬度 (HV) 为646.11的微米级SiC/Ni-Co-P复合镀层;研究了不同表面处理的微米级SiC对镀层形貌及微粒复合量的影响,结果显示,表面强负电性的微米级SiC参与电镀得到的微米级SiC/Ni-Co-P复合镀层,表面微裂纹少且更加平整无孔隙,微粒含量较表面带正电性和弱电性的SiC更高。探究了微米级SiC通过电沉积的方式进入镀层的过程及界面行为,解释了微米级碳化硅表面处理对其进入镀层的影响。

关键词 碳化硅-镍基复合材料碳化硅改性镍基合金电沉积碳化硅含量    
Abstract

Micron graded SiC/Ni-Co-P composite coating, as a substitute for Cr-plating was successfully prepared on 9Cr2Mo steel by galvanostatic deposition. On this basis, the effect of bath composition on the macro- and micro-morphology, composition and microhardness of the coating was assessed through single factor experiments. The results show that the acquired SiC/Ni-Co-P composite coating presents hardness of 646.11 (HV); the SiC/Ni-Co-P composite coating incorporated with strongly electronegative micron grade SiC particles has smoother surface with less microcracks but without pores, and the particle content is higher than that with electropositive and weak electric SiC particles. The process and interface behavior of the incorporated micro SiC particles in the coating by electrodeposition were investigated, and the effect of surface treatment of micron SiC on the coating was also interpreted.

Key wordssilicon carbide nickel matrix composite    silicon carbide modification    nickel base alloy electrodeposition    silicon carbide content
收稿日期: 2020-10-19     
ZTFLH:  TQ153  
基金资助:国家重点研发计划(2018YFB2002000);国家自然科学基金(U1637204)
通讯作者: 李卫平     E-mail: liweiping@buaa.edu.cn
Corresponding author: LI Weiping     E-mail: liweiping@buaa.edu.cn
作者简介: 张陈扬,男,1995年生,硕士生

引用本文:

张陈扬, 刘慧丛, 韩东晓, 朱立群, 李卫平. 微米级SiC/Ni-Co-P复合镀层的制备及影响因素[J]. 中国腐蚀与防护学报, 2021, 41(5): 579-584.
Chenyang ZHANG, Huicong LIU, Dongxiao HAN, Liqun ZHU, Weiping LI. Preparation of Micron SiC/Ni-Co-P Composite Coatings and Influencing Factors. Journal of Chinese Society for Corrosion and protection, 2021, 41(5): 579-584.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2020.198      或      https://www.jcscp.org/CN/Y2021/V41/I5/579

图1  不同硫酸镍浓度镀层的表面及SEM形貌
图2  不同氯化镍浓度镀层的表面及SEM形貌
图3  不同碳化硅浓度镀层的SEM像
图4  碳化硅浓度对镀层中SiC质量分数和镀层硬度的影响
图5  不同离子表面活性剂处理后的微粒粒径分布图
图6  不同表面活性剂处理后的SiC微粒的Zeta电位
图7  SDBS,PVP,CTAB及无表面活性剂处理后的SiC微粒共沉积的复合镀层表面形貌
CoatingSiCNiCoP
A27.2939.6825.986.740.58
B12.5334.8541.889.591.15
C1.3321.8569.597.130.09
D24.8237.3930.386.610.80
表1  不同镀层元素原子分数
图8  晶核在SiC表面的生长及SiC被包埋的SEM像
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