DYMAT 2009 (2009) 1201-1207
DOI: 10.1051/dymat/2009169

Formation of bulk nanostructure metals under dynamic loading

E.V. Shorokhov¹, I.N. Zhgilev¹, V.I. Zeldovich², I.G. Brodova², I.V. Khomskaya², A.V. Abramov¹, I.V. Minaev¹, N.Yu. Frolova², N.E. Zababakhin¹, N.P. Oglezneva¹, P.A. Nasonov¹ and I.G. Shirinkina<sup>2

1</sup>  Russian Federal Nuclear Center - Zababakhin All-Russia Research Institute of Technical Physics, 456770 Snezhinsk, Russia
²  Institute of Metal Physics, RAS Ural Branch, 620041 Ekaterinburg, Russia

Published online: 15 September 2009

Abstract
Structural changes observed in samples of technical-purity titanium, copper, and aluminum alloy AMts (Al–Mn) after severe plastic deformation were studied and results of this investigation are presented. In experiments, materials were loaded with the help of a gun. Samples were accelerated up to the velocity of about 100–400 m/s and then directed into a special matrix consisting of two channels located at 90° to one another. These samples were deformed with the strain rate of ~ 10⁵ s⁻¹; the stagnation pressure in the channel ranged from 2 to 5 GPa. Consideration is given to the relation between loading conditions and the specific nature of structure formation in materials. Under dynamic loading, the coarse-grained structure of the grain in the aluminum alloy becomes ~ 400 nm, and the sub-grain structure with the size of 50–100 nm is formed in copper. Microhardness of materials increases 1.5–2 times.

© EDP Sciences 2009

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

• If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
• You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
• You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.