Web of Conferences
Issue
Volume 2, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 1095 - 1101
Section Micro-Structural Effects
DOI 10.1051/dymat/2009153
Published online 15 September 2009

DYMAT 2009 (2009) 1095-1101
DOI: 10.1051/dymat/2009153

High-rate deformation of a niobium single crystal under loading by spherical converging shock waves

A.V. Dobromyslov1, N.I. Taluts1 and E.A. Kozlov2

1  Institute of Metal Physics, Ural Division of RAS, 620041 Ekaterinburg, Russia
2  Russian Federal Nuclear Center VNIITF, 456770 Snezhinsk, Chelyabinsk Region, Russia


Published online: 15 September 2009

Abstract
Method loading by spherical converging shock waves was applied to study the high-rate plastic deformation of a niobium single crystal. The structure of the recovered specimen was studied by X-ray diffraction analysis, optical, scanning, and transmission electron microscopy as well as by the measurement of microhardness along the radius in some radial directions. It is established that a niobium single crystal under such loading acquires polycrystalline structure and the high-rate plastic deformation of it occurs by slip and by formation of deformation vortices.



© EDP Sciences 2009


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