Sliding wear behaviors of electrodeposited nickel composite coatings containing micrometer and nanometer La2O3 particles

Micrometer and nanometer La₂O₃ particles were codeposited with nickel by electroplating from a nickel sulfamate bath. The wear behaviors of the composite coatings were evaluated sliding against AISI 1045 steel under non-lubricated conditions. It was found that the incorporation of the La₂O₃ particle...

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Bibliographic Details
Published in:Journal of materials science 2006-03, Vol.41 (6), p.1781-1784
Main Authors: Xue, Yu-Jun, LI, Ji-Shun, Ma, Wei, Zhou, Yan-Wei, Duan, Ming-De
Format: Article
Language:English
Subjects:
Coated electrodes
coatings
Codeposition
crystals
Electroplating
Frictional wear
hardness
Lanthanum oxides
Materials science
Medium carbon steels
Microhardness
nickel
Nickel coatings
Particulate composites
Plating baths
Protective coatings
Sliding friction
steel
Wear resistance
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Summary:Micrometer and nanometer La₂O₃ particles were codeposited with nickel by electroplating from a nickel sulfamate bath. The wear behaviors of the composite coatings were evaluated sliding against AISI 1045 steel under non-lubricated conditions. It was found that the incorporation of the La₂O₃ particles enhances the microhardness and wear resistance of Ni coatings. The wear resistance of the Ni composite coating containing nano-sized La₂O₃ particles is higher than that of the Ni composite coating containing micro-sized La₂O₃ particles. The codeposition of the smaller nanometer La₂O₃ particles with Ni effectively reduces the size of Ni crystals and significantly increases the hardness of the composite coatings, resulting in significantly improved wear resistance of the nano-sized La₂O₃/Ni composite coating.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-006-3947-2