Ultra-severe plastic deformation for room-temperature superplasticity and superfunctionality

Ultra-severe plastic deformation for room-temperature superplasticity and superfunctionality

Kaveh Edalati

Abstract. Ultra-severe plastic deformation (ulta-SPD) is a terminology used for the introduction of extremely large shear strains (over 1000) to material so that the thickness of sheared phases geometrically reaches the subnanometer level. Under such extreme shearing conditions, new nanostructured phases with unique properties are formed even from the immiscible systems. Various metallic alloys and ceramics were developed by this concept for different applications such as room-temperature superplasticity, room-temperature hydrogen storage, photocatalytic hydrogen production, photocatalytic carbon dioxide conversion, etc. This article reviews recent advances regarding ultra-SPD with a focus on low-temperature superplasticity, which was reported for the first time at room temperature in aluminum and magnesium alloys.

Keywords
Severe Plastic Deformation (SPD), High-Pressure Torsions (HPT), Superplasticity, Strain Rate Sensitivity, Functional Properties

Published online , 12 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Kaveh Edalati, Ultra-severe plastic deformation for room-temperature superplasticity and superfunctionality, Materials Research Proceedings, Vol. 32, pp 41-52, 2023

DOI: https://doi.org/10.21741/9781644902615-4

The article was published as article 4 of the book Superplasticity in Advanced Materials

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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