Journal ArticleDOI
Using high-pressure torsion for metal processing: Fundamentals and applications
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TLDR
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.About:
This article is published in Progress in Materials Science.The article was published on 2008-08-01. It has received 2499 citations till now.read more
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Microstructure and mechanical properties of friction stir processed Cu with an ideal ultrafine-grained structure
TL;DR: In this paper, a UFG material with uniform microstructure was successfully prepared by friction stir processing (FSP) under additional water cooling, which exhibited equiaxed grains with low dislocation density, weak texture and high fraction of high-angle grain boundaries.
Journal ArticleDOI
The contribution of grain boundary sliding in tensile deformation of an ultrafine-grained aluminum alloy having high strength and high ductility
Tarang Mungole,Praveen Kumar,Megumi Kawasaki,Megumi Kawasaki,Terence G. Langdon,Terence G. Langdon +5 more
TL;DR: In this paper, an as-cast Al-7 % Si alloy was processed by high-pressure torsion (HPT) for up to 10 turns at temperatures of 298 or 445 K.
Journal ArticleDOI
On the formation of an ultrafine-duplex structure facilitated by severe shear deformation in a Ti–20Mo β-type titanium alloy
TL;DR: In this paper, an ultrafine-duplex (α+β) structure composed of equiaxed α precipitates formed inside the shear bands (SBs) created during equal channel angular pressing (ECAP) was introduced to introduce severe shear strain into a Ti-20 wt.% Mo β-type titanium alloy to elucidate the aging response of the severely deformed β matrix.
Journal ArticleDOI
High strength and plastic deformability of Mg–Li–Al alloy with dual BCC phase produced by a combination of heat treatment and multi-directional forging in channel die
TL;DR: The maximum specific yield strength of the Mg-Li-Al alloy was 263 kN·m·kg -1, and the limit of reduction during cold rolling of all MDFCed LA143 samples exceeded 99% as mentioned in this paper.
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Effect of Annealing Temperature on Microstructure and Mechanical Properties of a Severe Cold-Rolled FeCoCrNiMn High-Entropy Alloy
TL;DR: In this paper, the effect of annealing temperature over a wide range from 573 K to 1373 K (300 °C to 1100 °C) on the microstructure and mechanical properties of an ultrafine-structured FeCoCrNiMn highentropy alloy was systematically investigated.
References
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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.
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Novel ultra-high straining process for bulk materials—development of the accumulative roll-bonding (ARB) process
TL;DR: In this paper, the accumulative roll-bonding (ARB) method was proposed to introduce high plastic strain without any geometrical change if the reduction in thickness is maintained to 50% every rolling pass.
Journal ArticleDOI
Producing bulk ultrafine-grained materials by severe plastic deformation
Ruslan Z. Valiev,Yuri Estrin,Zenji Horita,Zenji Horita,Terence G. Langdon,Michael J. Zehetbauer,Yuntian Zhu +6 more
TL;DR: In this article, an overview of recent achievements and new trends in the production of bulk ultrafine-grained (UFG) materials using severe plastic deformation (SPD) is presented.