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Citation: XUAN Tian-Peng, ZHANG Lei, HUANG Qin-Hua. Micromorphology and Wear Resistance of Chemical Plating Co-Ni-B-Ce Alloy under Magnetic Field[J]. Chinese Journal of Applied Chemistry, ;2005, 22(3): 268-271. shu

Micromorphology and Wear Resistance of Chemical Plating Co-Ni-B-Ce Alloy under Magnetic Field

1.
College of Material Science and Engineering, Hefei University of Technology, Hefei 230009

Corresponding author: XUAN Tian-Peng,
Received Date: 24 May 2004
Available Online: 9 November 2004
Fund Project: 国家自然科学基金资助项目(50371023) (50371023)

The surface micromorphologies,microhardnesses and wear volumes of chemical plating Co-Ni-B-Ce alloy obtained under a magnetic field were studied.The results show that the surface of Co-Ni-B coating was composed of "taper humps",the surface felt smooth,and became irregular when the plating was carried out in the plating bath containing the cerium compound.The surface "taper humps" of the Co-Ni-B-Ce alloy coatings were much more irregular when the plating was carried out under magnetic field.The microhardness and wear resistance of Co-Ni-B alloy coatings are remarkably increased when cerium chloride added in the plating bath and the plating process is performed under a magnetic field.With increasing of cerium amount in the plating bath,both the micro hardness and wear resistance of the alloy coatings increase first and decrease afterwards,and both reach to their peak values at c(Ce)=0.8 g/L in the plating bath.
- electroless Co-Ni-B alloy,
- cerium,
- surface morphology,
- magnetic field
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