OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 27 No. 1 2025 Ta b l e 3 Wear investigation of PGB0 Sr. No. Load [N] Speed [rpm] Time [min] Avg. Wear [µm] 1. 30 200 20 5.58 2. 30 500 50 123.52 3. 30 800 80 142.25 4. 50 200 20 163.22 5. 50 500 50 189.42 6. 50 800 80 192.87 7. 70 200 20 419.12 8. 70 500 50 822.53 9. 70 800 80 825.15 Results and Discussion Investigation of the wear process of PGB0 as a function of load This study investigates the influence of the average load on the wear of PPS + 40% GF composite at a constant sliding speed. The Taguchi L9 array was employed to analyze three operating parameters at three levels, as detailed in Table 3. This approach aims to systematically investigate the effect of load on wear. The results, presented in Fig. 1, show that the PGB0 composite generally exhibits lower wear compared to base PPS. It is noted that the wear of PGB0 increases with increasing load at a sliding speed of 2.0423 m/s (Fig. 1). This can be attributed to the increase in heat generation in the contact zone under load, which leads to softening of the polymer matrix and a reduction in shear resistance required to remove material from the sample surface. Fig. 1. Wear vs Sliding Distance. PGB0
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