Conventional electrodeposition is used to develop Ni-Al2O3 nano-composite over the Al-2618 surface through nickel-plated immersion. Scratch investigation was carried out with respect to various process parameters such as immersion temperature, packing of particles and current density. The scratch resistance of electrodeposition composition was determined with the Ducom TR102-Scratch testing device and it was fortified with Rockwell C diamond stylus (0.2 mm rad.). Microscopic analysis was made of the morphology and scratch stages of the electrodeposited layer. The results indicates coating layer narrowly imitates the surface contour, as well as the toughness of a substance is influenced by its strength. Also the better adhesive strength could be achieve by higher temperatures, moderate particle loading and current density.
