Compression wave structure under plane impact deformation of a molybdenum single crystal [100] with different initial density of dislocations
Garkushin G.V.1,2, Savinykh A.S.1,2, Razorenov S.V.1,2, Paramonova I.V. 3
1Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia
2Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
3LUCH Research and Production Association, Research and Development Institute, Federal State Unitary Enterprise, Podolsk, Moscow region, Russia
Email: garkushin@ficp.ac.ru
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. Keywords: Single crystal, small deformations, compression wave evolution, wave profile, VISAR interferometer.
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