PULSE ELECTRODEPOSION OF Ni-TiN NANOCOMPOSITE COATING AND INVETIGATING IT’S CORROSION PROPERTIES

In this study, nanocomposite coating with nickel matrix and nano TiN powder was synthesized. These coatings have been produced by electroplating technique and pulse current was applied to comparedifferent properties by altering it’s parameters. The surface morphology has been studied by SEM microscopy. Also XRD patterns and EDX curves were used to investigate the phases which existed in the coatings and to calculate the percentage of each in them. It was shown that by increasing the current density, the amount of the powder in the coating was increased. The corrosion resistance wasdecreased during elevating the current density. In addition, by lowering the duty cycle, the amount ofpowder was increased. According to the duty cycle data, it was concluded that the higher the amount of the nano phase in the coatings, the better will be the corrosion resistance of the coatings

Keywords:

nanocomposite coating , electroplating , pulse current , corrosion resistance