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The friction behavior of the formed antifriction films and their effect on the functional properties of the composite based on the powder nickel alloy EI929 with solid lubricant CaF2 at high temperatures was investigated. An antifriction film was formed on the contact surfaces during the friction process. Such a film was the result of the interaction of the contact surfaces with atmospheric oxygen at high temperatures. It contains oxides of alloying elements from materials of the frictional contact and solid lubricant calcium fluoride. The quantitative ratio of formed oxides depends on the temperature operating conditions of material. The data of thermodynamic simulation of the high-temperature interaction of the composite with oxygen coincide with the experimental data obtained by studying the fine structure of surface antifriction films. Antifriction films consist of oxide phases in combination with solid CaF2 lubricant. Anti-friction films provide high wear resistance of the self-lubricating composite in the range of temperatures 1073–1173 K due to the balance between the rate of their formation and wear. When the temperature exceeds 1200 K, the film loses its lubricating properties and acts as an abrasive substance due to the intense oxidation. Abrasive surfaces of materials were subjected also to microscopic examination, in which the mechanically mixed layer (MML) was described. The study of the friction surface roughness parameters confirmed the presence of the formed friction self-lubricating film and allowed to determine its parameters. The friction mechanism was the formation of an oxide layer combined with a solid lubricant, which provides high antifriction properties in the range of 1073–1273 K.

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The article is dedicated to the development of the methodological approach to monitoring of the economic and functional state of innovation-oriented machine engineering enterprises in the context of selected indices in alignment with the range of recommended (desired) values. The authors suggest the following stages of performing the monitoring: structuring of the indices which determine results of performing economic functions; formation of the composition of machine engineering enterprises in accordance with the fourth and the fifth techno-economic paradigms (technological modes); calculation of economic indices, determination of respective indices of dynamics; elimination of the influence on the values of the indices of non-systemic events; indication of the range of a recommended (desired) rate of knowledge and analysis of indices of a particular enterprise. The authors applied the proposed approach to research 20 enterprises of Ukraine which by the types of activities belong either to the fourth or the fifth technological paradigm. The ranges of recommended (desired) values for the indices of dynamics in figures relevant to the results of performing economic functions of innovation-oriented machine engineering enterprises were calculated for the fourth and the fifth technological paradigm enterprises. The difficulties in turning to the fifth technological paradigm in Ukraine in comparison with Poland, Germany, France and The United Kingdom were detected due to a complex of internal and external factors; nevertheless, a possibility for positive dynamics in 2017 has been outlined.