2_2026_sen_9

Title of the article METHOD FOR CALCULATING STATIC TECHNOLOGICAL PARAMETERS OF AN ELECTROMAGNETIC DRIVE WITH A FERROMAGNETIC AUSTENITIC SHAPE-MEMORY CRYSTAL ACTUATOR WITH A SINGLE MARTENSITIC INTERLAYER
Authors

OSTRIKOV Vladislav O., M. Sc. in Eng., Ph. D. Student of the Department “Mechanical Engineering Technology, Automation and Robotics”, Sukhoi State Technical University of Gomel, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.

OSTRIKOV Oleg M., D. Sc. in Eng., Ph. D. in Phys. and Math., Assoc., Prof. Head of the Department “Graphics”, Belarusian State University of Transport, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section MATERIALS SCIENCE IN MECHANICAL ENGINEERING
Year 2026
Issue 2(75)
Pages 80–86
Type of article RAR
Index UDK 539.4
DOI https://doi.org/10.46864/1995-0470-2026-2-75-80-86
Abstract The behavior of a ferromagnetic crystal acting as an actuating element with a shape memory effect in an electromagnetic drive is considered. The design of an electromagnetic measuring transducer with the shape-memory ferromagnetic crystal actuating element is described. A design feature is shown, which consists in combining magnetic and non-magnetic components for better passage of the magnetic field through the working element. The effect of a magnetic field on the occurrence of shear forces at the austenite/ martensite interfaces has been studied, which lead to deformation of a ferromagnetic crystal with a shape memory effect in a rigid enclosure. The purpose of solving the static problem was to find the force created by the sample as a result of the action of the magnetic field and driving the rod by changing the linear dimensions of the actuator. In the course of solving the static problem, systems of equilibrium of forces and moments for the martensitic layer, the first and second austenitic volumes are compiled. It is established that the problem is statically indefinable due to the discrepancy between the number of unknown quantities and the number of equations. To solve this problem, an assumption was made that represents the equality and parallelism of forces arising at the austenite/martensite interfaces as a result of the action of the magnetic field. Using the known parameters of the crystal lattice, it was possible to calculate the angle of rotation of the martensitic interlayer relative to the crystal surface, as well as the angle of rotation of the austenite/martensite interfaces and the height of the martensitic interlayer. Taking the known values of the forces occurring at the austenite/martensite interfaces and parallel to the applied magnetic field, it was determined that these forces are equal to the compensating forces providing static equilibrium and the magnitude of the force occurring at the end of the sample having a direct connection to the rod. A relationship has been found between the forces resulting from the action of the magnetic field at the austenite/martensite interfaces and shear forces directed parallel to the austenite/martensite interfaces.
Keywords electromagnetic drive, ferromagnetic crystal with shape memory, martensitic interlayer, interface
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Bibliography
  1. Ullakko K. Magnetically controlled shape memory alloys: a new class of actuator materials. Journal of materials engineering and performance, 1996, vol. 5, iss. 3, pp. 405–409. DOI: https://doi.org/10.1007/BF02649344. 
  2. Gabdullin N., Khan S.H. Review of properties of magnetic shape memory (MSM) alloys and MSM actuator designs. Journal of physics: conference series, 2015, vol. 588. DOI: http:// dx.doi.org/10.1088/1742-6596/588/1/012052. 
  3. Holz B., Riccardi L., Janocha H., Naso D. MSM actuators: design rules and control strategies. Advanced engineering materials, 2012, vol. 14, iss. 8, pp. 668–681. DOI: https://doi. org/10.1002/adem.201200045. 
  4. Laitinen V., Saren A., Sozinov A., Ullakko K. Giant 5.8% magnetic- field-induced strain in additive manufactured Ni-Mn-Ga magnetic shape memory alloy. Scripta materialia, 2022, vol. 208. DOI: https://doi.org/10.1016/j.scriptamat.2021.114324. 
  5. Ullakko K., et al. Large magnetic-field-induced strains in Ni2MnGa single crystals. Applied physics letters, 1996, vol. 69, iss. 13, pp. 1966–1968. DOI: https://doi.org/10.1063/1.117637. 
  6. Ullakko K., Huang J.K., Kokorin V.V., O’Handley R.C. Magnetically controlled shape memory effect in Ni2MnGa intermetallics. Scripta materialia, 1997, vol. 36, iss. 10, pp. 1133–1138. DOI: https://doi.org/10.1016/S1359-6462(96)00483-6. 
  7. Ostrikov V.O., Ostrikov O.M. Statika i dinamika granitsy razdela austenit/martensit v nagruzhennom prizmaticheskom monokristalle s effektom pamyati formy, nakhodyashchemsya v zhestkoy zadelke [Statics and dynamics of the austenite/martensite interface in a loaded prismatic single crystal with a shape memory effect located in a rigid seal]. Mashinostroenie, 2021, iss. 33, pp. 139–147 (in Russ.).  
  8. Ostrikov V.O., Ostrikov O.M. Staticheskaya i dinamicheskaya zadacha dlya edinichnoy martensitnoy prosloyki v ferromagnitnom monokristalle s effektom pamyati formy, nakhodyashchemsya v magnitnom pole v zhestkoy zadelke [A static and dynamic problem for a single martensitic layer in a ferromagnetic single crystal with a shape memory effect in a magnetic field in a rigid embodiment]. Problems of physics, mathematics and technics, 2023, no. 1(54), pp. 43–46. DOI: https://doi.org/1 0.54341/20778708_2023_1_54_43 (in Russ.). 
  9. Vasilevich Yu.V., Ostrikov V.O., Ostrikov O.M. Statika i dinamika granits razdela austenit / martensit martensitnoy prosloyki v nagruzhennom prizmaticheskom ferromagnitnom monokristalle s effektom pamyati formy, nakhodyashchemsya v zhestkoy zadelke [Statics and dynamics of the austenite / martensite interface of a martensitic interlayer in a loaded prismatic ferromagnetic single crystal with a shape memory effect located in a rigid seal]. Mashinostroenie, 2023, iss. 34, pp. 139–146 (in Russ.). 
  10. Ostrikov V.O., Ostrikov O.M. Raschet sil, deystvuyushchikh na neparallelnykh granitsakh razdela austenite/martensit v ferromagnitnom monokristalle s pamyatyu formy, nakhodyashchemsya v zhestkoy zadelke [Calculation of forces acting at non-parallel austenite/martensite interfaces in a ferromagnetic single crystal with shape memory located in a rigid embedding]. Proceedings of Francisk Skorina Gomel State University. Humanities, 2024, no. 3(144), pp. 116–121 (in Russ.). 
  11. Saren A., Ullakko K. Dynamic twinning stress and viscous-like damping of twin boundary motion in magnetic shape memory alloy Ni-Mn-Ga. Scripta materialia, 2017, vol. 139, pp. 126– 129. DOI: https://doi.org/10.1016/j.scriptamat.2017.06.010. 
  12. Malla A. Effect of composition on the magnetic and elastic properties of shape memory Ni-Mn-Ga. Master’s Thesis. Ohio, 2003. 191 p.