Abstract
The movement pattern of abrasive particles plays an important role in the three-body abrasion of tribomaterials. If the attack angle of a particle is greater than the critical attack angle, the particle cuts the materials during sliding. However, when the particles are rolling, the materials are no longer subject to cutting, but to plastic deformation. Therefore, an evaluation of the movement pattern of abrasive particles would be very important for both theoretical research and practical use of three-body abrasion. Based on this idea, a new wear tester was developed which could be used to monitor directly and record the state of movement of the particles. At the same time the friction coefficient could be measured. Using this tester the rolling to sliding ratio could be evaluated statistically and the range of probability of cutting wear could be evaluated.
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