A new designed incremental high pressure torsion process for producing long nanostructured rod samples

Eskandarzade, Mehdi; Masoumi, Abolfazl; Faraji, Ghader; Mohammadpour, Mahdi; Yan, Xinjie Sabrina

doi:10.1016/j.jallcom.2016.10.296

Cited by 28 publications

(9 citation statements)

References 18 publications

(18 reference statements)

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“…In the last decade, fabrication of bulk multi-layered composites by severe plastic deformation (SPD) processes was considered and developed quickly because of some advantages of SPD over other processes such as casting, deposition and powder metallurgy [7]. So far, different successful SPD methods [8] were developed such as equal channel angular pressing (ECAP) [9] and rolling (ECAR) [10], tubular channel angular pressing [11,12], high-pressure torsion (HPT) [13,14] and accumulative roll bonding (ARB) [15]. The common features all of SPD methods are no change in the sample cross section after and before the process, capability to produce ultrafine grained (UFG) structures with high angle grain boundary and useable for different metals and alloys [16].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Microstructure and Mechanical Properties of Multilayer Al5052–Cu Composite Produced by Accmulative Roll Bonding

Rahmatabadi

Tayyebi

Hashemi

et al. 2018

Powder Metall Met Ceram

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Section: Introductionmentioning

confidence: 99%

Evaluation of Microstructure and Mechanical Properties of Multilayer Al5052–Cu Composite Produced by Accmulative Roll Bonding

Rahmatabadi

Tayyebi

Hashemi

et al. 2018

Powder Metall Met Ceram

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“…SPD causes the formation of grain size in submicrometer to nanometer range, which results in the enhanced mechanical performance of the metals [11,12]. SPD techniques such as equal channel angular pressing (ECAP) [14-20], friction stir process (FSP) [21,22], high-pressure torsion (HPT) [23][24][25], accumulative roll bonding (ARB), and cryorolling, as well as asymmetric rolling are used for producing ultrafine grained materials.Aluminum alloys can be used in aero engines to manufacture compressor casing, cone, and inlet ring while aluminum composites are used in fan blades, fan casing, and cowls [26]. Superplasticity of aluminum alloys reduces manufacturing cost and has the ability to form parts of intricate geometry which would be difficult or even impossible to fabricate by other means.…”

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confidence: 99%

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confidence: 99%

Recent Development of Superplasticity in Aluminum Alloys: A Review

Bhatta

Pesin

Zhilyaev

et al. 2020

Metals

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Aluminum alloys can be used in the fabrication of intricate geometry and curved parts for a wide range of uses in aerospace and automotive sectors, where high stiffness and low weight are necessitated. This paper outlines a review of various research investigations on the superplastic behavior of aluminum alloys that have taken place mainly over the past two decades. The influencing factors on aluminum alloys superplasticity, such as initial grain size, deformation temperature, strain rate, microstructure refinement techniques, and addition of trace elements in aluminum alloys, are analyzed here. Since grain boundary sliding is one of the dominant features of aluminum alloys superplasticity, its deformation mechanism and the corresponding value of activation energy are included as a part of discussion. Dislocation motion, diffusion in grains, and near-grain boundary regions being major features of superplasticity, are discussed as important issues. Moreover, the paper also discusses the corresponding values of grain size exponent, stress exponent, solute drag creep and power law creep. Constitutive equations, which are essential for commercial applications and play a vital role in predicting and analyzing the superplastic behavior, are also reviewed here.

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“…The processing begins at the bottom of the sample and finishes at the top. 84) Though this procedure could increase the maximum processable length of the specimens, it is still not continuous.…”

Section: Hydrostatic Cyclic Expansion Extrusion (Hcee)mentioning

confidence: 99%

An Overview on the Continuous Severe Plastic Deformation Methods

Faraji

Torabzadeh

2019

Mater. Trans.

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Severe Plastic Deformation (SPD) processes have been extensively investigated in the last 30 years to facilitate the production processes of nanostructured (NS) or ultrafine-grained (UFG) materials with unique properties. However, the majority of the efforts were limited on the laboratory-scale investigations not to be able to overcome the demands for industrial scale applications. Researchers have tried to introduce effective industrial methods for processing large and long UFG/NG materials. In this review, all industrial processes especially continuous SPD methods which are more suitable for mass production are categorized and explained. Furthermore, the factors influencing the process efficiency were presented to give a vision to the researchers who want to step in this scientific field. Finally, the industrial processes were compared regarding final microstructure and properties.

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A new designed incremental high pressure torsion process for producing long nanostructured rod samples

Cited by 28 publications

References 18 publications

Evaluation of Microstructure and Mechanical Properties of Multilayer Al5052–Cu Composite Produced by Accmulative Roll Bonding

Evaluation of Microstructure and Mechanical Properties of Multilayer Al5052–Cu Composite Produced by Accmulative Roll Bonding

Recent Development of Superplasticity in Aluminum Alloys: A Review

An Overview on the Continuous Severe Plastic Deformation Methods

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