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0215U004686,
0114U006486
,
The development of experimental techniques and studies of regularities of structural transformations of solids, quantum size effects
Loskutov Stepan Vasilevich, Доктор фізико-математичних наук
07-09-2015
Zaporizhzhia National Technical University
The physico–mechanical properties of surface layers of solid bodies were investigated with the aim of determining the electromagnetic field and mechanical stress effects on the changes in electronic and ionic subsystems of metals, dielectrics and conditions of plasma formation at the surface of materials. The adhesion model of the plasma coating particles with a rough surface of the substrate during plasma evaporation was considered. It is shown that on the steel surface under steel coating applying, the position of the melting isotherm is displaced as to the contact temperature isotherm in the direction of substrate microlugs. The estimation of the adhesion strength of the coating depending on the height of roughness and substrate temperature was obtained. A new concept of martensitic transformation in steels and iron alloys which first makes it possible to explain the existence of two different transformation kinetics (and respectively structures) in concentration and temperature range was proposed. Athermic martensitic transformation is considered as a magnetic first-order phase transformation which is only partially described by the Clapeyron-Clausius equation, and the main effect is due to the quantum mechanical exchange interaction between atoms in the fcc - phase. The effect of electric potential on the contact deformation kinetics of aluminum was revealed. It is shown that in experimental conditions on kinetic indentation plasticity increases by 19 %. The approach to interpreting the results of nanofilm experiments with using a formula that allows us to trace separately the influence of various factors and to obtain information about the size and frequency dependence of the model parameters was proposed. It is shown that to ensure the rigidity of the shaft damper of the fan, the most successful are magnets which are made of Nd15,2Fe74,99C0,51B6,6Cu1,57Ті1,38 alloy. The original demonstration with radiometer Krucza as well as new laboratory works "Oscillation of the ferrule" and "Testing of the Huygens theorem" were proposed for the first time.
І. В. Золотаревський
А.В. Єршов
В.К. Манько
В.П. Курбацький
М.І. Правда
М.О. Щетініна
О.А. Зеленіна
С.В. Сейдаметов
С.П. Лущин
Т.В. Гуляєва
2020-04-02
Updated: 2025-12-07
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