Abstract
The Ni based alloys and composites synthesized by electro-deposition techniques were investigated in this paper. The co-deposition techniques for development of Ni-Co alloys, synthesis of oxide doped nanocomposites were analyzed. The hardness, wear resistance and corrosion resistance of different coatings: Ni, Ni-Co alloys, Ni-Fe2O3, Ni-Al2O3, Ni-Fe-BN, Ni-TiN composites were studied in detail. The Ni-Fe-BN and Ni-TiN showed more than 550 percent increase in hardness of stainless steel substrate. The Hardness was found to be about 600-1180Hv for Nitride impregnated coatings. These films also showed higher corrosion resistance in comparison to other Ni based alloy and composite coatings. The microstructural investigation of these alloys showed nanostructured rods and fibres in the deposited films.
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