Abstract
Application of the phenomenon of self-organization for the development of wear resistant materials has been reviewed. For this purpose the term of self-organization and dissipative structures as applied to tribology have been discussed. The applications of this phenomenon have been shown in order to develop new wear resistant- and antifriction materials. Specific examples have been shown for the application of the self-organization phenomenon and the generation of dissipative structures for the formation of tribotechnical materials with enhanced wear resistance for current collecting materials and antifriction materials of bearings.
Highlights
Over the past several years there have been many scientific publications regarding the application of nonequilibrium thermodynamics and the theory of self-organization in tribology, for instance [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]
Articles on nonequilibrium thermodynamics as applied to friction are divided into two types
The second type of articles is characterized by the detailed description of relevant experiments mentioning that the results of such experiments correspond to nonequilibrium thermodynamics
Summary
Over the past several years there have been many scientific publications regarding the application of nonequilibrium thermodynamics and the theory of self-organization in tribology, for instance [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16]. Self-organization is determined as formation of order in nonequilibrium conditions The authors of this description offered the same definition for dissipative structures in [18]. The process of self-organization (formation of dissipative structures) is abrupt, not gradual, the boundary conditions and the flow of entropy are not changed. As the entropy is reduced so should the production of entropy This corresponds to the assertion in [19] that after formation of dissipative structures in the system, production of the entropy is lower than under the same conditions but without self-organization. Entropy production and the rate of wear at the same time would always be greater than an avalanche-like occurrence This differs the self-organization from a gradual process, for example increasing the break-contact area under running-in. The difference between a gradual and abrupt (self-organization) decrease in the intensity of wear is shown using the example of different types of schematic dependencies of wear and wear rate of the
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