Abstract
A new parameter is proposed for characterizing boundary friction between solids—the probability Q that some contact spot will be converted to a wear particle as the real contact area shifts by one mean contact-spot diameter. A method is proposed for the phenomenological detection of optimum regimes of boundary friction, which are characterized by the minimum wear intensity of the sample material, and for measuring the corresponding quantity Q=Q opt. For babbitt, one of the most frictionless materials, the value of Q opt is found to be ≈2×10−10. When data on the linear wear intensity I h , the contact pressure p n , and the hardness H are available, Q can be calculated for the given test conditions. Deviations of Q from the value Q opt (for a given material) can serve as a criterion for how closely a prepared surface structure approaches the optimal.
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Zh. Tekh. Fiz. 68, 48–52 (April 1998)
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Kozyrev, Y.P., Ginzburg, B.M. Minimum-wear characteristics for boundary friction between solids. Tech. Phys. 43, 392–395 (1998). https://doi.org/10.1134/1.1258992
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DOI: https://doi.org/10.1134/1.1258992