Investigation of the Effect of Graphene-Nano Carbon Based Reinforcement on Physical and Mechanical Properties Added to Aluminum-Magnesium-Zirconium Alloy

In this work, metal-carbon nanocomposite production is targeted and nanocarbon forms (graphene) to be used as additive material are produced by electro exfoliation method. The produced graphene was dissolved in alcohol and polymer-based solvents to obtain a hydrophilic property, followed by the addition of metal powders to this solution to obtain a homogeneous Grafen-Metal powder mixture. This powder mixture is directly pressed by single-axis press and cold isostatic press, then sintered in argon and nitrogen atmosphere and finally microstructure textural, mechanical (hardness, etc.) and physical properties (porosity, density) are measured and characterization the results are discussed. The added wt.% 3 Mg and 1% Zr increased the initial hardness value of Aluminum from 20 to 30 Hv to 80 HV. It has been measured that the hardness increases to 80 HV and above depending on the increased pressing force and the increased sintering temperature, but a decrease in mechanical values is measured after a certain value. The graphene reinforcement added to this alloy at wt% 0.05, 0.15, 0.3, 0.45 g also provided increased hardness and strength. The hardness and strength values increased above the values of 100 HV and 250 MPa, respectively. A systematic new method of graphene production, composite reinforcement method and sintering process has been obtained and it has been observed that the addition of graphene causes a filling effect in the matrix, leading to an increase in strength and hardness values. In addition, it was observed that wear resistance in Al-3Mg-1Zr alloy with graphene reinforcement was observed to be increased, and in the powder compacting process, friction decreased and compressibility increased. Such a result is believed to provide engineering benefit, particularly in extrusion or deep drawing, by reducing the frictional forces and increasing the deformation capability during forming operations