Electroplastic deformation by twinningmetals

• Autorzy: Savenko V. V.

Identyfikatory

DOI

10.2478/ama-2018-0039

• Języki publikacji: EN

Abstrakty

EN

The article deals with theoretical and experimental approaches to electroplastic deformation caused by twinning of metals. The author specifies physical fundamentals of Kinetics regarding the development of twinning caused by the excitation of electronic subsystem of metals. Physical models of new channels for the realization of twinning aroused under conditions of electroplasticity have been discussed. Mechanisms of plasticized influence of a surface electric charge have been defined as well as the contribution of a dynamic pinch-effect in the elastic plastic deformation of metals with the participation of the intrinsic magnetic field of the current. The dynamic pinch effect creates ultrasonic vibration of the lattice system while Kinetics changes and plastic deformation are stimulated increasing the amplitude of the oscillations of rectilinear dislocations and the periodic change in the position of the dislocation loops with an increase in the probability of detachment of dislocations from the stoppers. When deformed above the yield point and due to the pinch effect the intrinsic magnetic field of the current diffuses into the crystal where the diffusion rate depends both on the conductivity of the metal and on the frequency of the current. It is necessary to take into account the physical conditions for the creation of ponderomotive effects in relation to specific technically important materials for the practical use of electroplastic deformation technology, especially when processing metals with pressure.

Słowa kluczowe

EN

electroplastic deformation; ponderomotive action current; pinch effect; skin effect; pulse current; magnetic field; electric field vortex field hall; mechanical pressure; maximum axial force

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2018
• Tom: Vol. 12, no. 4
• Strony: 259--264
• Opis fizyczny: Bibliogr. 20 poz., rys., wykr.

Twórcy

autor

Savenko V. V.

• Physics and Engineering Faculty, Mozyr State Pedagogical University named after I.P.Shamyakin, 28 Studencheskaya Str., 247760, Mozyr, Republic of Belarus

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).