Journal ArticleDOI
Twenty-five years of ultrafine-grained materials: achieving exceptional properties through grain refinement
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In this article, an overview of the more recent developments in this field, with special emphasis on the opportunities for achieving homogeneity in the as-processed materials and on the general characteristics of the mechanical properties achieved after SPD processing.About:
This article is published in Acta Materialia.The article was published on 2013-11-01. It has received 614 citations till now.read more
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Book ChapterDOI
Mechanical behavior of nanostructured metals
TL;DR: In this article , the authors proposed to improve the tensile plasticity of nanostructured materials by improving their capability for sustained strain hardening, which is the key to improving their ductility.
Journal ArticleDOI
Effect of pre‐processing annealing and ram speed on mechanical properties for low carbon steel processed by constrained groove pressing
Journal ArticleDOI
Finite Element Modeling of ECAP-Linex Combined Process of Severe Plastic Deformation
Evgeniy Panin,Irina Volokitina,Andrey Volokitin,Abdrakhman Naizabekov,Gulzhainat Akhmetova,Sergey Lezhnev,Andrey O. Tolkushkin,A. Esbolat,Rozina Yordanova +8 more
TL;DR: In this article , a new deformation process combining the stages of equal-channel angular pressing (ECAP) and the Linex scheme is presented, where the main parameters of the stress-strain state are considered, as well as the deformation force on the main elements of the combined process: pulley, matrix, and conveyor link.
Journal ArticleDOI
Structure and texture of pure magnesium after the backward extrusion at room temperature
TL;DR: In this article , pure magnesium with a coarse-grained structure was deformed by a backward extrusion (BE) method at room temperature at one step, and a Mg-cup with a wall of 1 mm thickness was obtained.
References
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Journal ArticleDOI
The Deformation and Ageing of Mild Steel: III Discussion of Results
TL;DR: In this paper, an attempt is made to explain the observed phenomena in the yielding and ageing of mild steel, described in two previous papers, in the general terms of a grain-boundary theory.
Journal ArticleDOI
Bulk nanostructured materials from severe plastic deformation
TL;DR: In this article, the authors present methods of severe plastic deformation and formation of nanostructures, including Torsion straining under high pressure, ECA pressing, and multiple forging.
Journal ArticleDOI
Principles of equal-channel angular pressing as a processing tool for grain refinement
TL;DR: In this article, a review examines recent developments related to the use of ECAP for grain refinement including modifying conventional ECAP to increase the process efficiency and techniques for up-scaling the procedure and for the processing of hard-to-deform materials.
Journal ArticleDOI
Using high-pressure torsion for metal processing: Fundamentals and applications
TL;DR: High pressure torsion (HPT) is a well-known technique for metal forming as discussed by the authors, where samples are subjected to a compressive force and concurrent torsional straining.
Journal ArticleDOI
Diffusional Viscosity of a Polycrystalline Solid
TL;DR: In this article, it is suggested that mosaic boundaries and boundaries between grains of nearly the same orientation may not serve as sources or sinks of the diffusion currents, in which case the creep rate will depend only on the configuration of grain boundaries having a sizable orientation differen...