“…The use of graphene as a solid lubricant is based on a different friction-reducing mechanism, which takes advantage of the extremely easy glide between graphene flakes during incommensurate interface contact [6,[9][10][11] by the formation of multiple transferred Coatings 2022, 12, 1153 2 of 15 graphene nanoflakes on the asperities of sliding surfaces [12]. As the self-lubricating mechanisms of graphene operate independently of the presence of external lubricants, graphene can be used as a component of both bulk materials [13,14] and coatings [15][16][17][18][19][20][21][22][23][24]. The latter solution seems to be particularly promising, because graphene used as an additive in coatings displays various other characteristics, e.g., anticorrosive [25,26] or biologically active properties [27,28], allowing the achievement of a synergic effect with a properly selected matrix material.…”