*Article* **Amorphous-Nanocrystalline Composites Prepared by High-Pressure Torsion**

**Inga Permyakova 1,\* and Alex Glezer 1,2**


Received: 23 February 2020; Accepted: 14 April 2020; Published: 15 April 2020

**Abstract:** This article presents systematic studies of the preparation method and the specific features of the changes in the structure and properties of amorphous-nanocrystalline composites formed from melt-quenched ribbons of iron- and cobalt-based amorphous alloys and the Cu-Nb crystalline nanolaminates by severe plastic deformation by torsion in the Bridgeman chamber at high quasi-hydrostatic pressure.

**Keywords:** composite; amorphous alloy; nanolaminate; severe plastic deformation; high-pressure torsion; hardness; crack resistance
