Electrochemical and Mechanical characterization of Ni/SiC composite coatings electrodeposited on steel
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Date
2018-12-10
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University of Eloued جامعة الوادي
Abstract
In this study, the structure (Ni/SiC) composite
and pure nickel coatings were prepared by electroplating
deposition on steel in a Watts bath of electroplating chloride,
consisting of an electrolytic nickel matrix (binder) with and
without adding silicon carbide micro particles (SiC) (mean
diameter 0.8 m) which a high hardness and a good
chemical stability.
The coating analysis is performed by atomic force microscopy
(AFM), and scanning electron microscopy (SEM). The
characterizations of the deposited layers are carried out in
3.5% NaCl solution. The weight loss and the polarization
results highlighted a silicon carbide concentration which can be
included in the overall expression of a good composite coating.
Moreover, the incorporation of the micro particles had a
significant impact on the micro hardness of the composite
deposits (Ni / SiC).
Description
International Symposium on Mechatronics and Renewable Energies El-Oued 10- 11 December 2018
Keywords
electrodeposition, co-deposition, SiC, weight loss, polarization