Tribological Properties of Cu-MoS<sub>2</sub>-WS<sub>2</sub>-Ag-CNT Sintered Composite Materials

oleh: Adam Piasecki, Mateusz Kotkowiak, Maciej Tulinski, Robert Čep

Format: Article
Diterbitkan: MDPI AG 2022-11-01

Deskripsi

In this work, in order to produce Cu-MoS<sub>2</sub>-WS<sub>2</sub>-Ag-CNT self-lubricating materials, powder metallurgy was used. Several different compositions containing single solid lubricant MoS<sub>2</sub>, WS<sub>2</sub>, Ag and CNTs as well as multi-component lubricants in the copper matrix were prepared. Friction and wear tests were carried out using the pin-on-disc method at room temperature. Light microscopy (LM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) were used to characterize the wear mechanism of sintered materials. The tribofilm on the worn surfaces of sintered materials and counter-specimens was observed. The influence of single solid lubricants and the synergistic interaction of two, three or four solid lubricants on tribological properties of sintered composite materials were determined.