Production and Investigation of Properties of Nickel Particle Reinforced AA5083 Matrix Metal-Metal Composites

The objective of this study is to develop metal-metal composites reinforced with nickel powder, using an AA5083 aluminum alloy matrix through powder metallurgy methods, and to examine their characteristics. To analyze the influence of different amounts of nickel particles on the AA5083-Ni composite, samples were produced by incorporating nickel at weight percentages of 5%, 10% and 15%. To achieve a uniform distribution of nickel particles, the matrix and composite powders were blended in ball mills for five hours. Subsequently, these powders were hot pressed at 500°C under a pressure of 500 MPa for two hours in an argon gas atmosphere, resulting in the formation of the samples. These samples were then tested for their microstructure, hardness, density, tensile properties and corrosion behaviour to assess the impact of varying nickel content on the AA5083-Ni metal-metal composites.