Technology, energy, agriculture transport AIC

Yuriy PALADIYCHUK – Сandidate of technical sciences, Аssociate professor of the Department of Agroengineering and Technical Service of Vinnitsa National Agrarian University (3 Soniachna St., Vinnitsa, 21008, Ukraine, e-mail: rewet@vsau.vin.ua, https://orcid.org/0000-0003-4257-9383).

Inna TELYATNІK – Recipient of the Third Educational and Scientific Level of Vinnytsia National Agrarian University (3, Solnychna st., Vinnytsia, 21008, Ukraine, e-mail: inna201098@gmail.com, https://orcid.org/0000-0002-2998-1506).

Marina KUBAI – lecturer at the Department of Ukrainian and Foreign Languages, Faculty of Management and Law. of Vinnitsa National Agrarian University (3 Soniachna St., Vinnitsa, 21008, Ukraine, e-mail: marinakubaj@ukr.net, http://orchid.org/0009-0000-5703-295Х).

When materials are processed under static or impact loads, a tool imprint is first formed, which is later transformed into a series of interlocking marks. When a hard ball is pressed into a material, the initial elastic deformation turns into plastic deformation as the load increases. Plastic deformations propagate, leaving an imprint whose size depends on the properties of the material being processed.
The microhardness of a material is an important indicator of its resistance to indentation; higher values reduce the size of the imprints and the depth of deformation, increasing the durability of the material. The depth of the rivet, which depends on the depth of the print, is determined by a coefficient that varies depending on the processing conditions. The diameters of the imprints and the load on the ball are described by the Hertz and Meyer equations, which help to assess the nature of deformations in the elastic and plastic regions.
Machining processes that are affected by friction and material anisotropy are more complex, so the proposed equations are of limited use. Plastic deformation indicates the degree of hardening of the material, which varies depending on the structural components of the metal. In particular, martensitic steels exhibit a higher pitting depth compared to sorbitol.
Strain hardening goes through three stages: initiation of dislocations, their interaction and accumulation, and intensive displacement of dislocations. These stages are interrelated and affect the overall mechanical properties of metals. Grain boundary displacements play an important role during deformation at high temperatures, which can change the mechanical properties of the material.
Additionally, the study highlights the importance of understanding the microstructural changes induced by plastic deformation during surface treatment processes. By analyzing the interaction of elastic and plastic deformation, strain hardening mechanisms, and the effects of dislocation accumulation, the research provides insights into optimizing the mechanical properties of metals. These findings are essential for improving the durability, wear resistance, and strength of machined components, contributing to the development of more efficient and reliable surface treatment technologies.

1.    Paladijchuk, Yu.B., Telyatnik, I.A. (2022). Тypy i konstruktsii vibrozbudzhuvachiv suchasnoho mashynobuduvannia [Types and designs of vibration exciters of modern engineering]. Vibrations in Engineering and Technology, 4 (107). 26–35. [in Ukrainian].
2.    Telyatnik, I.A. (2023). Doslidzhennia poverkhnevoi plastychnoi deformatsii pry hidroimpulsnomu vplyvi [Study of surface plastic deformation under hydraulic pulse action]. Engineering, energy, transport AIC, 1 (120). 110–119. [in Ukrainian].
3.    Veselovska, N.R., Paladijchuk, Yu.B., Telyatnik, I.A. (2022). Doslidzhennia mikrotverdosti poverkhni tsylindrychnoi detali pry deformatsiinomu protiahuvanni [Examination of microhardness of cylindrical part surface during deformation pulling]. Engineering, energy, transport AIC, 3 (118), 31–42 [in Ukrainian].
4.    Iskovych-Lototsky, R., Veselovska, N. (2018). Automatic system for modeling vibro-impact unloading bulk cargo on vehicles. Proc. SPIE 10808, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments. 1080860 (1 October 2018). URL: https://doi.org/10.1117/12.2501526. (data zvernennya 30.09.2024). [in English].
5.    Paladiychuk, Y., Telyatnik, I. (2023). Increasing the efficiency of choosing a hydraulic impulse drive with programmable control. Agricultural engineering, 55, 30–43. [in English].
6.    Rostislav, Iskovych-Lototsky, Yaroslav, Ivanchuk, Yaroslav, Veselovsky, Konrad, Gromaszek, Ayaulym, Oralbekova (2018). Automatic system for modeling of working processes in pressure generators of hydraulic vibrating and vibro-impact machine. Proc. SPIE 10808, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 1080850 (1 October 2018). URL: https://doi.org/ 10.1117/12.2501532. (data zvernennya 30.09.2024). [in English].
7.    Paladiichuk, Yu. B., Kordonskyi, V.A. (2020.). Obhruntuvannia mekhaniky ruinuvannia struzhky pry protiahuvanni tsylindrychnykh poverkhon z prypuskom [Justification of chip destruction mechanics when pulling cylindrical surfaces with allowance]. Vibrations in Engineering and Technology, 4 (99), 73–84. [in Ukrainian].
8.    Iskovich-Lotockij, R.D., Ivanchuk, Ya.V., Veselovskij, Ya.P. (2014). Osnovi rezonansno-strukturnoyi teoriyi vibroudarnogo rozvantazhennya transportnih zasobiv [Fundamentals of resonance-structural theory of vibration shock unloading of vehicles]. Science and transport progress. Bulletin of the Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, 5 (53), 109–118. [in Ukrainian].
9.    Paladiichuk, Y. (2021). Study of characteristics of growth formation after deformation strength during deforming strength. Architecture Medical sciences Technical science Physics and mathematics, 2 (89). 30–35. [in English].
10.    Posviatenko, E., Posviatenko, N., Budyak, R., Shvets, L., Paladiichuk, Y., Aksom, P., Rybak I., Sabadach, B., Hryhorychen, V. (2018). Influence of a material the technological factors on improvement of operating properties of machine parts by reliefs and film coatings. Eastern-European Journal of Enterprise Technologies, 5/12 (95), 48–56. [in English].