Specific features of the dynamic behavior of a screw dislocation under excitation of transverse dislocation vibrations |
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Authors: | V V Malashenko |
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Institution: | (1) Donetsk National Technical University, ul. Artema 96, Donetsk, 83000, Ukraine;(2) Donetsk Physicotechnical Institute, National Academy of Sciences of Ukraine, ul. Rozy Luksemburg 72, Donetsk, 83114, Ukraine |
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Abstract: | The dynamic retardation of the motion of screw dislocations at point defects is investigated taking into account the excitation of transverse vibrations of dislocation elements both in the glide plane and in the plane normal to it. It is shown that the inclusion of the vibrations of the dislocation elements in the plane normal to the glide plane does not change the dependence of the retarding force on the glide rate and defect concentration but considerably increases the magnitude of this force (specifically in the case of the isotropic model, the retarding force increases by a factor of 2). |
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