Comparative Analysis of Evolving Phenomenological and Microstructural Parametersin Tribomaterial Caused by Cyclic Rolling

Savenko, V.I.

Автор: Savenko V.I.
Журнал: Journal of Friction and Wear
Том: 43
Номер: 1
Год издания: 2022
Первая страница: 80
Последняя страница: 89
Переводные версии: Сопоставительный анализ временной эволюции феноменологических и микроструктурных характеристик трибоматериалапри циклическом качениии
DOI: 10.3103/S1068366622010111
Аннотация: The experimental data gathered using the pendulum tribometer technique is used to carry out experimental and theoretical analysis of the pattern changes in the phenomenological (tribotechnical) andmicrostructural characteristics of the tribomaterial (lithium fluoride monocrystal plate). A tribopair comprising a ball (ShKh15 grade steel) and monocrystal plane (001) models the process underlying multicycle rolling. The temporal relationship is established between the macro and micro-characteristics of the process and the physics and mathematical model is developed. It is shown that the key role is played by microplastic deformation developing in the surface layer of the analyzed contact pair tribomaterial in the multi-cycle rolling mode. It is found that after multicycle tribocontact running-in the total rolling friction coefficient drops to fr≅ 5 × 10–5 at the final stages of the damping oscillations, the indentation angle increases to ψ≅10–2,and the micro-hardness in the raceway next to the pendulum equilibrium position attains Нμ≅2 GPa. The approach proposed can be used to analyze the processes developing in rolling bearings used in high-precision mechanic devices.
Добавил в систему: Савенко Владислав Ильич

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Comparative Analysis of Evolving Phenomenological and Microstructural Parametersin Tribomaterial Caused by Cyclic Rollingстатья Исследовательская статья

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