High Pressure Tube Twisting for Producing Ultra Fine Grained Materials: A Review

Tóth, László; Cai, Chao; Pougis, Arnaud; Arzaghi, Mandana; Fundenberger, Jean-Jacques; Massion, Roxane; Suwas, Satyam

doi:10.2320/matertrans.mf201910

Cited by 26 publications

(38 citation statements)

References 34 publications

(54 reference statements)

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“…The vertical parts of the rotating mandrel realized HPTT-like deformation in the MDZ area. During classic HPTT, the tubular sample is placed between an internal and external mandrel, and an axial pressure is applied [ 11 ]. The rotation of the external mandrel leads to shear deformation in the wall, with a shear plane in a normal direction with respect to the tube radius, and a tangential shear direction.…”

Section: Discussionmentioning

confidence: 99%

“…Other SPD techniques were created by modification of HPT to exploit the high hydrostatic pressure during straining. The methods named tube high-pressure shearing (t-HPS) [ 9 , 10 ] or high pressure tube twisting (HPTT) [ 11 , 12 ] both apply large hydrostatic pressure on the tubular sample placed between an inner and outer mandrel. The external torque through the rotation of one or both mandrels then lead to shear deformation resulting in strengthening through grain refinement in the tube wall.…”

Section: Introductionmentioning

confidence: 99%

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Microstructural Evolution of a 3003 Based Aluminium Alloy during the CSET Process

et al. 2021

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A new severe plastic deformation technique, known as the complex shearing of extruded tube (CSET), was applied to a 3003 based model aluminium alloy. This technique, consisting of a combination of extrusion and two consecutive Equal Chanel Angular Pressing (ECAP) passes accompanied with concurrent torsional straining, is capable to produce a fine-grained tubular sample directly from a bulk metallic cylinder in one forming operation. In the present paper, the microstructural development of the alloy during partial processes of CSET was studied in detail using light microscopy, electron backscatter diffraction, and transmission electron microscopy. It was found that CSET technique refines the grain size down to 0.4 µm and, consequently, increases the microhardness from the initial value of 40 HV to the final value of 120 HV. The contributions of partial processes of CSET to the total strain were estimated.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microstructural Evolution of a 3003 Based Aluminium Alloy during the CSET Process

et al. 2021

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“…In contrast, when using traditional plastic processing to produce micro parts, there is an obvious size effect due to the grain size being comparable to the size of the micro part [4], which would affect the final dimensional accuracy of the formed part in actual production, leading to higher costs and lower production efficiency. Studies have shown that the above-mentioned drawbacks can be significantly ameliorated when using ultrafine-grained materials [5,6], which paves the way for the development of micro-forming technology. To date, such techniques as equal-channel angular pressing (ECAP) [7][8][9], high-pressure torsion (HPT) [10] and other methods have been developed to refine the grains to micron and submicron grains of intense plastic deformation severe plastic deformation (SPD) techniques.…”

Section: Introductionmentioning

confidence: 99%

Deformation Behavior and Microstructural Evolution of T-Shape Upsetting Test in Ultrafine-Grained Pure Copper

Jiang

Yan

et al. 2021

Materials

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Ultrafine-grained (UFG) materials can effectively solve the problem of size effects and improve the mechanical properties due to its ultra-high strength. This paper is dedicated to analyzing the deformation behavior and microstructural evolution of UFG pure copper based on T-shape upsetting test. Experimental results demonstrate that: the edge radius and V-groove angle have significant effects on the rib height and aspect ratio λ during T-shape upsetting; while the surface roughness has little effect on the forming load in the first stage, but in the second stage the influence becomes significant. The dynamic recrystallization temperature of UFG pure copper is between 200 °C and 250 °C.

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“…14 Further efforts in this direction recently led to the presenting of several SPD methods for processing UFG and NS cylindrical tubes. 15 High-pressure tube twisting (HPTT), 16 accumulative spin-bonding (ASB), 17 tube channel pressing (TCP), 18 parallel tubular channel angular pressing (PTCAP), 19 tube high-pressure shearing (t-HPS), 20 tube cyclic expansion–extrusion (TCEE), 21 and rotary extrusion. 22 In recent years, environmental issues like environmental pollution, depletion in conventional energy reserves, and ever-increasing fuel prices necessitate the development of lightweight structures in automotive, space, and such like industries.…”

Section: Introductionmentioning

confidence: 99%

Processing ultrafine grained non-circular cross-section profiles via severe plastic deformation

Babaei

Jafarzadeh

Mazloumbashiri

2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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In this study, a new technique is presented for processing ultrafine-grained noncircular thin section profiles via severe plastic deformation. For the first time, a noncircular thin section profiles can be severe plastic deformation processed by this method entitled the noncircular thin section cyclic extrusion–compression (NCTS-CEC). In this technique, the whole length of the profile is passed through a neck zone while it is fully enclosed by the tools set. Therefore, the whole length of the specimen experiences a cyclic extrusion and compression, which accumulates a high level of strain in the material. The feasibility of the NCTS-CEC was successfully examined on aluminum profiles with L, U, and hollow square cross-sections. The microstructure evolution of the processed specimens was investigated by metallographic observations and X-ray diffraction analysis, which demonstrate the formation of a ultrafine-grained microstructure after processing by two cycles of the NCTS-CEC. Moreover, evaluations of the mechanical properties of the processed profiles show remarkable improvements in the yield and ultimate strengths. The microhardness of the processed specimens was also increased after the second cycle to ∼55 Hv from the initial value of 30 Hv. The deformation behavior of the material during processing by the NCTS-CEC method was also numerically simulated by the commercial finite element software DEFORM TM-3D V11.

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High Pressure Tube Twisting for Producing Ultra Fine Grained Materials: A Review

Cited by 26 publications

References 34 publications

Microstructural Evolution of a 3003 Based Aluminium Alloy during the CSET Process

Microstructural Evolution of a 3003 Based Aluminium Alloy during the CSET Process

Deformation Behavior and Microstructural Evolution of T-Shape Upsetting Test in Ultrafine-Grained Pure Copper

Processing ultrafine grained non-circular cross-section profiles via severe plastic deformation

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