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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The nature of grain refinement in equal-channel angular pressing: a comparison of representative fcc and hcp metals
TL;DR: In this article, equal-channel angular pressing is used for producing exceptional grain refinement in bulk polycrystalline metals, such as aluminum and magnesium alloys, and it has been shown that the mechanism of grain refinement is different in fcc and hcp metals, whereas in magnesium the limited number of slip systems leads to the formation of new grains along the existing grain boundaries.
Journal ArticleDOI
Grain size effect on tensile deformation behaviors of pure aluminum
TL;DR: In this article, a series of ideal materials with average grain sizes range from 0.7μm to 30.0μm containing high fraction of high angle grain boundaries (HAGBs), equiaxed grains and low density of dislocations were produced by friction stir processing (FSP).
Journal ArticleDOI
Strain path and microstructure evolution during severe deformation processing of an as-cast hypoeutectic Al–Si alloy
J.M. García-Infanta,A.P. Zhilyaev,Fernando Carreño,Oscar Antonio Ruano,Jianqing Su,S. E. Menon,Terry R. McNelley +6 more
TL;DR: In this article, an as-cast Na modified Al-7%Si (wt pct) alloy was examined during redundant and monotonic straining by repetitive equi-channel angular pressing (ECAP) under ambient temperature conditions, and during friction stir processing (FSP).
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On the grain size dependent working hardening behaviors of severe plastic deformation processed metals
TL;DR: In this paper, the work hardening behavior of nano-crystalline or ultra-fine-crystaline metals processed by severe plastic deformation (SPD) was investigated.
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Effect of Multidirectional Forging on the Grain Structure and Mechanical Properties of the Al–Mg–Mn Alloy
M. S. Kishchik,Anastasia V. Mikhaylovskaya,Anton D. Kotov,Ahmed O. Mosleh,Waheed Sami Abushanab,V.K. Portnoy +5 more
TL;DR: The IMF technique can be successfully used to produce fine-grained materials with improved mechanical properties and exhibited a yield strength and an elongation to failure 30% higher than that of the sheets processed with simple thermomechanical treatment.
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.
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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.