About the article
V.V. IZMAILOV
Correlation relationships are considered that describe the dependence of the linear wear rate of a friction contact on the friction coefficient and the hardness of the materials of the components of the friction pair. The relationships were obtained by statistical processing of experimental data relating to the brush-commutator friction pair. A strong correlation has been established between the linear wear rate of the friction pair components and the friction coefficient. A strong positive correlation of the linear wear rate with the hardness of the brush and commutator materials was also discovered, which contradicts the known results indicating an increase in wear resistance with increasing hardness of the rubbing parts. The most probable explanation for this contradiction is given. In addition, this dependence is non-monotonic with a noticeable increase in wear rate if the hardness of the brush material becomes comparable to the hardness of the commutator material.
friction, friction coefficient, linear wear rate, hardness, correlations.