This article is cited in 9 papers

Mechanical properties, strength physics and plasticity

Change of the kinetics of shock-wave deformation and fracture of VT1-0 titanium as a result of annealing

G. I. Kanel'^a, S. V. Razorenov^bc, G. V. Garkushin^bc, A. V. Pavlenko^d, S. N. Malyugina<sup>d

a</sup> Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow
^b Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
^c Tomsk State University
^d Russian Federal Nuclear Center E. I. Zababakhin All-Russian Scientific Research Institute of Technical Physics, Snezhinsk

Abstract: The paper presents the results of measurements of shock-wave compression profiles of VT1-0 titanium samples after rolling and in the annealed state. In the experiments, the pressure of shock compression and distance passed by the wave before emerging to the sample surface were varied. From measurements of the elastic precursor decay and compression rate in a plastic shock wave of different amplitudes, the plastic strain and the corresponding shear stresses in the initial and subsequent stages of high-rate deformation in an elastoplastic shock wave are determined. It is found that the reduction in the dislocation density as a result of annealing reduces the hardness of the material but significantly increases its dynamic yield strengh, corresponding to the strain rate above 10$^{4}$ s$^{-1}$. With a reduction in the strain rate, this anomalous difference in the flow stresses is leveled off.

Received: 09.12.2015

 English version: Physics of the Solid State, 2016, 58:6, 1191–1198

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