Abstract :
During the past decade, fabrication of bulk
nanostructured metals and alloys using severe plastic
deformation (SPD) has been evolving as a rapidly
advancing direction of nanomaterials science and
technology aimed at developing materials with new
mechanical and functional properties for advanced
applications. The principle of these developments is
based on grain refinement down to the nanoscale level
via various SPD techniques. This paper is focused on
investigation and development of new SPD processing
routes enabling fabrication of fully dense bulk nanostructured
metals and alloys with a grain size of 40–
50 nm and smaller, namely, SPD-consolidation of
powders, including nanostructured ones, as well as
SPD-induced nanocrystallization of amorphous alloys.
We also consider microstructural features of SPDprocessed
materials that are responsible for enhancement
of their properties
