Akademik Veri Yönetim Sistemi
1. International Ankara Scientific Research Congress, Ankara, Türkiye, 21 - 22 Aralık 2024, cilt.1, ss.418-427
Carbon fiber reinforced polyetheretherketone (CF/PEEK) composites are
widely used in tribological applications due to their outstanding superior
properties. The friction and wear performance of composite materials depends strongly
on tribological factors. In the present study, the tribological performance of
CF/PEEK composites under different friction and wear conditions was
investigated. Wear tests were carried out under dry sliding conditions using a
block-on-ring test apparatus. The parametric effect was investigated by varying
the parameters of normal force (50, 150 N), sliding velocity (0.5, 1.5 m/s),
and sliding distance (100, 300 m). The wear track dimensions were measured
using a stereo microscope, and volume losses and specific wear rates were
determined. The coefficients of friction as a function of sliding distance were
obtained and reported. At the end of the wear tests initiated at room
temperature, the final temperatures of the test specimens were measured using a
thermal camera. Increased normal force increased the contact temperature,
decreased the average friction coefficient, increased the volume loss, and
increased the wear rate. Increased sliding velocity also increased the contact
temperature, decreased the average coefficient of friction, increased the
volume loss, and increased the wear rate. Increased sliding distance increased the
contact temperature, slightly increased the average coefficient of friction, and
increased the volume loss, but its increasing effect on volume loss did not
occur on the wear rate. The morphology of the worn surfaces was examined using
scanning electron microscopy (SEM), and potential wear mechanisms were
discussed. Determining the performance of materials against different
tribological effects and understanding the underlying mechanisms will provide
insights into the development of high-resistance tribological materials.