Investigation of friction performance and surface integrity of aramid fiber-reinforced polymer matrix composite

Because of its superior properties, aramid fiber-reinforced polymer (AFRP) composite material is used in many sectors including the aerospace, automotive, and defense industries and maintains a stable and reliable coefficient of friction under the various conditions required by these industries. In this study, the friction coefficient of AFRP composites was determined by tests carried out using a ball-on-disc friction tester under 8 and 12 N loads at 300, 450, and 550 rpm. The wear traces were investigated and according to the results, the high friction forces negatively affected the wear and led to more prominent wear traces. It was concluded that oxidation, fatigue (thermal), and delamination wear were effective because the increase in the load increased the forces on the samples. In sample A1, the value obtained under the 8 N load was 287.5% lower than that measured under the 12 N load.