Identification between rotational fretting and rotational wear of PMMA/steel by means of tribo-noise and tribo-vibration signals

In this paper, the wear behavior of PMMA/steel was investigated by using the tribo-noise and tribo-vibration method under different angular displacement amplitudes. An intermediate zone definition between the boundaries of rotational fretting and rotational wear was proposed by the signals of tribo-vibration and tribo-noise. The relationship between the wear mechanism and the signals of both tribo-noise and tribo-vibration was established. The wear mechanism of rotational fretting and rotational wear has been well explained.