Abstract A study is presented of tribological metal-polymer systems. Parameter analysis by acoustic emission resulting from external friction was used. The experimental results obtained for metal-polymer friction pairs are dependent on various factors including load, velocity of relative travel, microgeometry of the contacting surfaces, physicomechanical properties of the materials and testing period. The rates of acoustic emission, the total acoustic emission and the magnitude of the frequency emission spectrum were used as informative characteristics concerning friction and wear kinetics. A number of general relations were determined for friction pairs, reflecting the influence of these factors on the acoustic activity of a rubbing contact. A relation was discovered between the mode of wear for polymers and the acoustic emission parameters. An assumption was made concerning the correlation between polymer mass loss by wear and the energy of acoustic emission as based on the model under consideration for failure of a simple contact spot.
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