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Magda, Buczek
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article
Self-lubricating aluminium matrix composites reinforced with 2D crystals
Abstract
In this study, AA6061-base composites reinforced with graphene (Gn(12)), hexagonal boron nitride (hBN) and molybdenum disulphide (MoS2) particles were analyzed. The composites were prepared by powder metallurgy processing using the Spark Plasma Sintering to consolidate powders. Microstructure, physical and wear properties were investigated and compared with unreinforced AA6061. For all composites, high relative density were obtained. The tribological studies showed that the friction coefficient significantly decreased with 2D crystals content increase. The results indicated that abrasive mechanisms have dominated during the wearing of the composites. Moreover, in composites with Gn(12) and MoS2, a film on the worn surface was observed.