The effect of heat treatment on properties of Ni–P–SiO 2  nano-composite coating

S. Sadreddini; A. Afshar

doi:10.1134/S2070205116030254

The effect of heat treatment on properties of Ni–P–SiO₂ nano-composite coating

Autores: Sadreddini S.¹, Afshar A.²
Afiliações:
1. Department of Materials Science and Engineering, Science and Research Branch
2. Department of Materials Science and Engineering
Edição: Volume 52, Nº 3 (2016)
Páginas: 492-499
Seção: Nanoscale and Nanostructured Materials and Coatings
URL: https://ogarev-online.ru/2070-2051/article/view/203012
DOI: https://doi.org/10.1134/S2070205116030254
ID: 203012

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In this study, the surface morphology of Ni–P–SiO₂ composite coating was investigated by field emission scanning electron microscopy (FESEM). The amount of SiO₂ in the coating was examined by energy dispersive analysis of X-ray (EDX) and the Corrosion behavior of coating was evaluated by electrochemical impedance spectroscopy (EIS) and polarization techniques, showing the corrosion resistance of Ni–P–SiO₂ diminished after heat treatment. The results showed that in the coating with 12.5 g/L SiO₂, the coating hardness enhanced from 453VH to 980 VH before and after heat treatment. Furthermore, the wear behavior of the coating was analyzed before and after heat treatment.