Fizyczne uwarunkowania doboru materiałów tarciowych skojarzeń metalowo-polimerowych.

Autorzy dowiedli, że długotrwała selekcja doboru materiałów na polimerowo-metalowe węzły tarcia może być znacząco uproszczona i efektywniejsza. Sformułowali zasady doboru materiałów i jego optymalizacji z wykorzystaniem wyników pomiaru swobodnej energii powierzchniowej.

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A proper selection of materials for metal-polymer friction pairs to obtain desired tribological properties is a long and arduous process due to time-consuming tribological tests, big influence of test and environment conditions, as well as measurement difficulties. So, it was desirable to elaborate a method for selection of materials for metal-polymer friction pairs. A very helpful for elaboration of the method may be a relationship between wear, friction coefficient and sum of polar components of surface free energy (SFE) of the mating materials. The performed research enabled the authors to formulate the rules for selection of materials in the context of adhesive wear reduction. Improvement of tribological properties of metal-polymer friction pairs, particularly by reduction of wear, can be realised not only through today's used modification of the polymer, but also through changing of the properties of the metal by deposition of a coating on the surface. Furthermore, selection of the material of the coating should be correlated with selection of the polymer modifier. The optimisation of the selection of the coating and modifier can be realised through determination of the parameters of SFE instead of time-consuming tribological tests.