Tribological Properties of Cu-MoS2-WS2-Ag-CNT Sintered Composite Materials

Author:

Piasecki AdamORCID,Kotkowiak MateuszORCID,Tulinski Maciej,Čep RobertORCID

Abstract

In this work, in order to produce Cu-MoS2-WS2-Ag-CNT self-lubricating materials, powder metallurgy was used. Several different compositions containing single solid lubricant MoS2, WS2, 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.

Funder

Ministry of Science and Higher Education in Poland

Rector’s Grant of Poznan University of Technology, Poland

Structural and Investment Funds of the European Union

Publisher

MDPI AG

Subject

General Materials Science

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