investigating of nickel-graphene nanostructure coating using nickel sulfamate bath with direct current, the effect of different variables on the micro-donning process

Recently, a new generation of metal-based composite coatings reinforced by nanometer ceramic particles has attracted the attention of researchers due to its good properties such as high hardness, wear resistance, and corrosion resistance. it depends on the type of reinforcing particles, the size of the particles, the percentage, and how the particles are distributed in the metal field. the nickel field coatings contain various types of carbon reinforcing particles, including graphite particles, carbon nanotubes, and recently, the use of graphene has a wide application. in order to protect the internal components of the cylinders of engines and pumps that work in high temperature, impact, high friction and corrosive environment in the automotive and aerospace industries, as well as to protect surfaces that require high corrosion resistance, electrical conductivity and they have high hardness and are used in marine and aviation electronics industries like electronic components. in fact, these coatings have replaced the coatings obtained from cream plating, which have lost their place due to environmental issues. it is evident that the properties of composite coatings basically depend on both phases of the metal background, the amount and distribution of co-precipitation particles, as a consequence, the higher the percentage of sediment particles in the field and the higher their uniformity, the better the mechanical, abrasion, anti-corrosion and anti-oxidation properties of the coatings will be better. in this research, an attempt has been made to create a nickel-graphene nanostructure coating by direct current and using a nickel sulfamate bath, and the effect of various variables on the micro-denning process was investigated by x-ray diffraction pattern and scherer debye formula. also, composite coating the nanostructure of ni-graphene is created by direct current. in the following, the effect of changes in parameters such as current density, temperature, time, ph and the amount of turbulence on the corrosion resistance, hardness, morphology and the amount of particles in the coating have been investigated. for this purpose, xrd and eds analysis, fesem and afm microscopes, as well as a polarization device have been used.