The dry sliding wear behavior of graphite micro particle reinforced PA66 composites has been investigated using pin-on-disc apparatus. The weight loss due to wear is determined at three applied loads (10N, 20N and 30N) and at three sliding distances (1000m, 2000m and 3000m). The sliding velocity is kept constant at 1 m/s. The composite shows better wear resistance with increase of graphite reinforcement. The lowest wear rate found to be the composite with 25% graphite reinforcement. The morphology of worn surfaces and transfer layers has been examined by using Scanning Electron Microscopy (SEM). Possible wear mechanism is discussed.

PA66 composites, sliding wear, SEM.