Study on the Structures and Properties of Ni-W-B-CeO2 Composite Coatings Prepared by Pulse Electrodeposition

稀土学报(英文版), 2007, 25(z1): 76-80.

^1, , ^2, , ^3, , ^4,

1.Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China

2.Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China

3.Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China

4.Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China

基金项目: Kunming University of Science and Technology Analysis and Measurement Research Fund(2007-22) Scientific Research Fund(2006-02) Applied Basic Research Plans Program of Yunnan Province(2007E187M)

Study on the Structures and Properties of Ni-W-B-CeO2 Composite Coatings Prepared by Pulse Electrodeposition

Xu Ruidong ^1, , Wang Junli ^2, , Guo Zhongcheng ^3, , Wang Hua ^4,

1.Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China

2.Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China

3.Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China

4.Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China

Keywords： pulse electrodeposition

The aim of this research is to pulse co-deposit nano-CeO2 particles into Ni-W-B alloy coatings in order to improve the surface properties. The influence of pulse frequency and duty circle on deposition rate, microhardness and microstructures, and the influence of heat treatment temperature on phase structures, microhardness and abrasivity of Ni-W-B-CeO2 composite coatings were investigated. The results indicated that the pulse co-deposition of nickel, tungsten, boron and nano-CeO2 particle from the bath which nano-CeO2 particle was suspended by high speed mechanical stirring led to the Ni-W-B-CeO2 composite coatings, possessing better microhardness and abrasion resistance when heat-treated at 400℃ for 1h. The microhardness as-deposited with 636Hz and the deposition rate with 0.0281mm·h-1 was the highest at pulse frequency with 1000Hz and pulse duty circle with 10%. Microstructures analysis displays that decreasing pulse duty cycle leads to refinement in grain structures and the improvement of microstructures. X-ray diffraction shows that the composite coating as-deposited was mainly in the amorphous state and partially crystallized, but when heat treated at 400℃, the crystallization trend was strenthened further.

参考文献

[1]	Zhitomirsky .Electrochemical processing and characterization of nickel hydroxide-polyelectrolyte coatings[J].Materials Letters,2004,58(3-4):420.
[2]	Z.Wang;P.Xiao .Novel fabrication technique for the production of ceramic/ceramic and metal/ceramic composite coatings[J].Scripta materialia,2000(7):653-659.
[3]	Marco Musiani .Electrodeposition of composites: an expanding subject in electrochemical materials science[J].Electrochimica Acta,2000(20):3397-3402.
[4]	El-Sherik A M;Erb U .Adhesion and corrosion performance of nanocrystalline Ni coatings[J].Plating and Surface Finishing,1995,82(09):85.
[5]	Xu Ruidong;Guo Zhongcheng;Wang Junli .Study on structure and properties of electrodeposited RE-Ni-W-B-B4C-PTFE composite coating[J].Transactions of Nonferrous Metals Society of China,2005,15(03):425.
[6]	Wang Wei;Guo Hetong .Nano-composite plating technology[J].Chemistry-A European Journal,2003,3(03):178.
[7]	蒋斌,徐滨士,董世运,王红美.纳米复合镀层的研究现状[J].材料保护,2002(06):1-3.
[8]	彭元芳,曾振欧,赵国鹏,刘建平.电沉积纳米复合镀层的研究现状[J].电镀与涂饰,2002(06):17-21.
[9]	赵晓兵,陈志刚.纳米复合材料及其制备技术综述[J].江苏大学学报(自然科学版),2002(04):52-56.
[10]	ZHU Xiao-yun,XU Rui-dong,GUO Zhong-cheng.Studies on High Temperature Oxidation of Electrodeposited RE-Ni-W-P-SiC Composite Materials[J].材料热处理学报,2004(05):1126-1129.
[11]	Guo Zhongcheng;Xu Rruidong;Zhu Xiaoyun .Studies on the wear resistance and structure of electrodeposited RE-Ni-W-P-SiC-PTFE composite materials[J].Surface and Coatings Technology,2004,187(2-3):141.
[12]	Guo Zhongcheng;Zhu Xiaoyun;Xu Ruidong .Cathodic process and wear resistance of electrodeposited RE-Ni-W-P-SiC composite coatings[J].Acta Metallurgica Sinica,2002,15(04):369.
[13]	Wang Yu;Li Zhi;Yu Jinghua .Study on process and properties of electrodeposited Ni-W-Al2O3 composite layer[J].Surface Technology,2002,31(05):24.
[14]	Guo Zhongcheng;Liu Hongkang;Wang Zhiying .Properties of electrodeposited amorphous Ni-W-P-SiC composite coatings[J].Acta Metallurgica Sinica,1996,9(01):44.
[15]	Ma keyi;Guo Zhongcheng;Wen Mingfen .Combination strenthening process of Ni-W-Ti-SiC composite coating And nitrocarburization[J].Transactions of Nonferrous Metals Society of China,1997(4):148-151.
[16]	GUO Zhong-cheng,ZHU Cheng-yi,ZHAI Da-cheng,YANG Xian-wan.Microstructure of electrodeposited RE-Ni-W-P-SiC composite coating[J].中国有色金属学会会刊,2000(01):50.
[17]	杨防祖,曹刚敏,胡筱,许书楷,周绍民.镍钨硼合金电沉积机理及镀层微晶尺寸[J].电化学,2000(02):169-174.
[18]	Zhu Chenyi;Yang J M .Original approaching of electrodeposited Ni-W-B-SiC composite coating[J].Journal of Kunming University of Science and Technology,1998,23(03):94.
[19]	邓纶浩,何柳,郭忠诚,杨显万.Ni-W-B-SiC复合电镀中B的沉积机理及其对镀层硬度的影响[J].材料保护,1999(06):3-5.
[20]	He Liu;Deng Lunhao;Su Chang .Current status and application of Ni-B alloy and its composite coatings[J].Electroplating and Pollution Control,1999,19(03):5.
[21]	Zhang Yuncheng;Hu Runan;Xiang Rong .Plating Handbook[M].北京:国防工业出版社,1997,630
[22]	Guo Zhongcheng;Yang Xianwan.The Theory and Practice of Eleetrodepositon Composite Materials[M].北京:冶金工业出版社,2002:82.

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材料期刊网

Study on the Structures and Properties of Ni-W-B-CeO2 Composite Coatings Prepared by Pulse Electrodeposition

参考文献