The Influence of Sliding Speed on The Tribological Behaviour of Graphite Powder Filled Polyamide-6 Composite
AbstractIn this experimental study, the tribological behaviour of polyamide-6 (PA-6) polymer, 10wt.%graphite filled polyamide-6 (PA-6+10%G) composite, polyamide-6 with wax (PA-6+6%w) and both 10wt.% graphite and 6wt.%wax filled polyamide-6 (PA-6+10%G+6%W) composites against steel under dry sliding condition were studied. Pin-on-disc wear test rig was used for the tribological tests. Friction and wear tests were studied at room temperature. Tribological tests were done at the sliding speeds of 0.4, 0.8 and 1.6m/s and under the load of 100N. As a disc material, AISI 316L stainless steel were used. The results show that the specific wear rates for all polymer and polymer composites used against steel increases slightly with the increment of sliding speed values. In addition, the coefficient of friction for polyamide-6 with wax polymer and graphite/wax filled polyamide-6 composite increase slightly, but it is decreases slightly with the increment of sliding speed for graphite filled polyamide 6 composite. Finally, the specific wear rates for PA-6 polymer, PA-6+10%G composite, PA-6+6%W and PA-6+10%G+6%W composite against steel under dry sliding conditions are in the order of 10-14, 10-14, 10-15 and 10-15 m2/N, respectively. The results suggested that it is more convenient to use PA-6+10%G+6%W composite against steel for tribological applications in the study.