Effect of Small Preliminary Deformation on the Evolution of Elastoplastic Waves of Shock Compression in Annealed VT1-0 Titanium


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Аннотация

The evolution of an elastoplastic waves of shock compression in VT1-0 titanium in the as-annealed state and after preliminary compression is measured. A preliminary strain of 0.6% and the related increase in the dislocation density are found to change the deformation kinetics radically and to decrease the Hugoniot elastic limit. An increase in the preliminary strain from 0.6% to 5.2% only weakly changes the Hugoniot elastic limit and the compression rate in the plastic shock wave. The measurement results are used to plot the strain rate versus the stress at the initial stage of high-rate deformation, and the experimental results are interpreted in terms of dislocation dynamics.

Авторлар туралы

G. Kanel’

Joint Institute for High Temperatures; National Research Tomsk State University

Email: garkushin@ficp.ac.ru
Ресей, Moscow, 125412; Tomsk, 634050

G. Garkushin

Institute of Problems of Chemical Physics; National Research Tomsk State University

Хат алмасуға жауапты Автор.
Email: garkushin@ficp.ac.ru
Ресей, Chernogolovka, Moscow oblast, 142432; Tomsk, 634050

A. Savinykh

Institute of Problems of Chemical Physics; National Research Tomsk State University

Email: garkushin@ficp.ac.ru
Ресей, Chernogolovka, Moscow oblast, 142432; Tomsk, 634050

S. Razorenov

Institute of Problems of Chemical Physics; National Research Tomsk State University

Email: garkushin@ficp.ac.ru
Ресей, Chernogolovka, Moscow oblast, 142432; Tomsk, 634050

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