In-situ formed graphene providing lubricity for the FeCoCrNiAl based composite containing graphite nanoplate

FeCoCrNiAl high entropy alloy (HEA) matrix composite containing graphite nanoplates has been produced by spark plasma sintering (SPS). The tribological properties of this composite were tribo-tested under various loads and velocities. The results suggested that compared to the HEA, the graphite nanoplates can reduce the coefficient of friction significantly from 0.5 to 0.8 to 0.27–0.16. Under low load and velocity conditions, the reduction of...