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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Aluminum Matrix Composites Reinforced with Graphene: A Review on Production, Microstructure, and Properties
TL;DR: Graphene, a single-atom-thick sheet of sp2 hybridized carbon atoms densely packed within a hexagonal crystal lattice, owes a significant portion of its rapidly expanding usage in various fields of science.
Journal ArticleDOI
A visualization of shear strain in processing by high-pressure torsion
Cao Yang,Yanbo Wang,Saleh N. Alhajeri,Xiaozhou Liao,W. L. Zheng,Simon P. Ringer,Terence G. Langdon,Terence G. Langdon,Yuntian Zhu +8 more
TL;DR: In this paper, optical microscopy was used to examine the shear strain imposed in duplex stainless steel disks during processing by high pressure torsion (HPT), and the results showed a double-swirl pattern emerges in the early stages of HPT and the two centres of the swirl move towards the center of the disk with increasing revolutions.
Journal ArticleDOI
Formation of FeNi with L10-ordered structure using high-pressure torsion
Seungwon Lee,Kaveh Edalati,Hideaki Iwaoka,Zenji Horita,Takumi Ohtsuki,Takuo Ohkochi,Masato Kotsugi,Takayuki Kojima,Masaki Mizuguchi,Koki Takanashi +9 more
TL;DR: In this paper, severe plastic deformation using high pressure torsion (HPT) is employed for the production of the L10 structure in the laboratory and its formation is confirmed by X-ray diffraction analysis and transmission electron microscopy.
Journal ArticleDOI
Effects of deformation temperature on second-phase particles and mechanical properties of 2219 Al-Cu alloy
TL;DR: In this paper, an age-hardenable 2219 Al-Cu alloy was severely deformed by multidirectional forging (MDF) at 360-510°C, followed by solution treatment and T8 aging treatment.
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In situ production of bulk intermetallic-based nanocomposites and nanostructured intermetallics by high-pressure torsion
TL;DR: In this article, the formation of nanostructured intermetallics was feasible in this process at significantly low temperatures because of the rapid diffusion and short diffusion paths resulting from intense shearing.
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.
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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.