Tribological Behaviours of Fe-Graphene Composites
Salih BEKTAS Mehmet Akif Erden Ahmet Nusret Tanrıverdi Yasin Akgül
AbstractIn this study, Fe matrix composites with different amounts of graphene nanoplatelets (0.2-0.5-0.8 wt%) were produced via powder metallurgy. Tribological behaviors of samples were determined with a dry sliding wear test. Results were compared with Fe-Graphite (C) composites. Microstructures of samples were investigated by the optical microscope. Vickers hardness and density measurement were performed for all samples. Also, worn surfaces of samples were observed with a Scanning Electron Microscope (SEM). Results show that all graphene nanoplatelets (GNPs) containing samples showed better wear resistance behavior compared to graphite containing samples. However, the same trend was not observed according to hardness test results. 0.8 wt% graphite-Fe sample has a higher hardness value than 0.8 wt% (GNPs)-Fe sample.