Title: Nanostructurisation of hypoeutectic silumin by electroexplosion alloying and subsequent electron beam processing

Authors: Yu.F. Ivanov; V.E. Gromov; D.V. Zagulyaev; S.V. Konovalov; Yu.A. Rubannikova; A.P. Semin

Addresses: Institute of High Current Electronics SB RAS, 634055, 2/3 Akademicheskii Ave., Tomsk, Russia; National Research Tomsk Polytechnic University, 634050, Linin av., 30, Tomsk, Russia ' Siberian State Industrial University, 654007, 42 Kirov Street, Novokuznetsk, Russia ' Siberian State Industrial University, 654007, 42 Kirov Street, Novokuznetsk, Russia ' Samara National Research University, 34 Moskovskoye Shosse, 443086 Samara, Russia ' Siberian State Industrial University, 654007, 42 Kirov Street, Novokuznetsk, Russia ' Siberian State Industrial University, 654007, 42 Kirov Street, Novokuznetsk, Russia

Abstract: The structure, phase composition and defect substructure of the surface layers of hypoeutectic silumin after the complex processing including the electroexplosion alloying (EEA) by the yttrium oxide powder and the subsequent electron beam processing have been analysed by the methods of modern physical materials science. The complex processing is accompanied by the dissolution of the silicon inclusions and intermetallides and the formation of the submicro- and nanodimensional structures. The modified layer (70 μm) is multielemental and it has the structure of high velocity cellular crystallisation.

Keywords: electroexplosion alloying; electron beams; hypoeutectic silumin; structure; phase composition.

DOI: 10.1504/IJNT.2019.106633

International Journal of Nanotechnology, 2019 Vol.16 No.6/7/8/9/10, pp.619 - 628

Published online: 15 Apr 2020 *

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