Open AccessСтруктура волны сжатия при плоском ударном деформировании монокристалла молибдена [100] с различной начальной плотностью дислокаций
Author(s) -
Г.В. Гаркушин,
А.С. Савиных,
С.В. Разоренов,
И.В. Парамонова
Publication year - 2022
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2022.09.52447.19153
Subject(s) - materials science , dislocation , compression (physics) , interferometry , laser , optics , plane (geometry) , single crystal , limit (mathematics) , condensed matter physics , composite material , crystallography , physics , geometry , chemistry , mathematics , mathematical analysis
The features of the evolution of the elastic-plastic compression wave in Mo single crystals along the crystallographic plane [100], having a different initial dislocation structure formed by small deformations of varying degrees of static compression at room temperature, have been studied. The analysis of wave profiles recorded using the VISAR laser interferometer in samples of different thicknesses showed a non-monotonic change in the hugoniot elastic limit depending on the initial dislocation density – pre-strain of a single crystal by compression reduces the hugoniot elastic limit by 3 times.