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|Title:||Initial Excited State and Divergence of Wave Beams as Factors Responsible for the Realization of the Wave Process that Controls the Growth of Transformation Twins|
|Authors:||Kashchenko, M. P.|
Kashchenko, N. M.
Chashchina, V. G.
|Citation:||Kashchenko, M. P. Initial Excited State and Divergence of Wave Beams as Factors Responsible for the Realization of the Wave Process that Controls the Growth of Transformation Twins / M. P. Kashchenko, N. M. Kashchenko, V. G. Chashchina // Physics of Metals and Metallography. – 2019. – Vol. 120. – Iss. 5. – P. 422-428.|
|Abstract:||Abstract: In the dynamic theory of martensitic transformations the wave mechanism of growth of martensite crystals is controlled by the overlap of wave beams of quasi-longitudinal (or longitudinal) waves that carry deformation of the “tension–compression” type in orthogonal directions. The appearance of wave beams is considered a consequence of the appearance of the initial excited (vibrational) states. The presence of the transformation twins is interpreted as the result of the matched propagation of relatively long-wave (𝓁 waves) and short-wave (s waves) displacements. With the aid of the Fourier transforms, an analysis was performed of the influence of the diffraction divergence of a pair of orthogonal wave beams on the formation of a region of their superposition, including the limiting case of narrow beams with one of the transverse dimensions of the front less than λ/2, where λ is the wavelength. The connection of the distribution of the amplitudes of spatial harmonics with the configuration of the initial excited state is discussed. © 2019, Pleiades Publishing, Ltd.|
|Keywords:||CONFIGURATION OF THE INITIAL EXCITED STATE|
DIVERGENCE OF WAVE BEAMS
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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