METHOD OF DETERMINING WEAR RESISTANCE Russian patent published in 2011 - IPC G01N3/56 

FIELD: physics.

SUBSTANCE: samples with a conical, pyramidal or prismatic shape of given geometry rub a flat surface with their vertex. As a result of wearing, the sample gets shorter by a linear wear value and a worn area forms, parallel to the friction plane, wherein nominal normal pressure falls with increase in width of the worn area. Knowing geometrical characteristics of the sample from the wear width, the total value of linear wear, the surface area of the worn area and the nominal normal pressure are calculated. Wear resistance is determined based on the time dependency of linear wear and nominal normal pressure, on the basis of which an empirical curve of wear intensity is calculated as a function of nominal normal pressure in the form: I=K·q^p, where I is linear wear intensity; q is nominal normal pressure; K, p are constants which depend on the material of the friction pair and contact interaction conditions.

EFFECT: obtaining an empirical power law dependence of wear intensity as a function of normal pressure which can be used when calculating and predicting working capacity of friction assemblies.

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