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Abstract
In recent years exclusive properties of nanoparticle coatings on metal matrix has attracted researchers to study more on synthesis of Ni-based nano-composites by electrodeposition process. In this paper the effects of duty cycle on the microstructure, hardness, wear and corrosion resistance were investigated on an AISI 1005 low carbon steel specimen electroplated in Watt's type bath. The obtained coating was strong and well adherent to the steel substrate. The Ni matrix nano-composite coatings with Al2O3/Y2O3 Graphene uniformly dispersed particles were fabricated by using electroplating technique with the aid of ultrasound condition. Scanning electron microscope (SEM) was used to study cross section profile and thickness measurement of the coatings. Increasing duty cycle in an average current density and constant frequency of 1000 Hz resulted in improvement of the mechanical properties and corrosion resistance of coated samples.
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