Using severe plastic deformation to produce nanostructured materials with superior properties

Abstract

The recent decade was marked by significant advances in the development of severe plastic deformation (SPD) techniques to achieve new and superior properties in various materials. This review examines the achievements in these areas of study and explores promising trends in further research and development. SPD processing provides strong grain refinement at the nanoscale, produces high dislocation and point defect densities as well as unusual phase transformations associated with particle dissolution, precipitation or amorphization. Such SPD-induced nanostructural features strongly influence the deformation and transport mechanisms and can produce a substantial enhancement in the performance of advanced materials. Exploiting this knowledge, we discuss the concept of nanostructural design of metals and alloys for multifunctional properties such as high strength and conductivity, superplasticity, increased radiation and corrosion tolerance and others. Special emphasis is placed on advanced metallic biomaterials that promote innovative applications in medicine.

Keywords: bulk nanostructured materials, severe plastic deformation, ultrafine-grained biomaterials, functional properties, mechanical properties, nanostructural design

More information

Identifiers

ORCID for Terence G. Langdon: orcid.org/0000-0003-3541-9250

Catalogue record

Export record

Altmetrics