Analysis of the microstructure evolution, enhanced hardness and electrical conductivity of T6 heat-treated A319/graphene composites

In this research, the microstructure evolution, hardness and electrical conductivity of a T6 heat-treated A319/graphene nanoplatelets (GNP) composite were investigated. Microstructural analysis was carried out using an optical microscope and a scanning electron microscope equipped with energy-dispersive X-ray spectroscopy (EDS). Transmission electron microscopy was also performed using brightfield and high-angle annular dark-field detectors in …