Investigation on the Properties of Multiwall Carbon Nanotube-, Graphene-, and Fullerene-Reinforced Hot-Extruded AA7075 Matrix Composites

Abstract

The tremendous thermal and mechanical capabilities of carbon-based nanomaterials have drawn from researchers across the world. Composites reinforced with graphene nanoplatelets (GNPs), multiwall carbon nanotubes (MWCNT), and fullerenes (C20) were utilized in this study to increase their strength. A hot extrusion approach and a solution-based semipowder metallurgical technology were employed. Microscopically and mechanically, the samples were tested. Mechanical properties were assessed through the use of roughness and tensile tests. Even a small amount of nanocarbon (0.25 wt %) significantly improved the toughness and hardness qualities of AA7075. Composite reinforced with C20 was found to have higher hardness and yield strength than any other samples.