Decade of Twist Channel Angular Pressing: A Review

Macháčková, Adéla

doi:10.3390/ma13071725

Cited by 12 publications

(8 citation statements)

References 67 publications

(94 reference statements)

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“…The clad composite consisted of an Al sheath and five reinforcing Cu wires. Both the experimental and numerically simulated billets were processed via a single pass TCAP, and subsequently via the second pass, deformation route A for which was selected (i.e., the billet was not rotated between the individual passes—details of the selected deformation route and strain paths can be found in [ 52 , 53 ]).…”

Section: Methodsmentioning

confidence: 99%

“…This can primarily be attributed to the selected deformation route (A, see Section 2 and references. [52,53]), which involved no rotation between the passes. By the effect of the presence of the twist deformation zone (TDZ), the locations of the four peripheral Cu wires changed during the second extrusion, i.e., the billet cross-section rotated by 90 • compared to the cross-section of the billet extruded via a single pass.…”

Section: Numerically Predicted Plastic Flow and Imposed Strainmentioning

confidence: 99%

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Structure Characteristics Affected by Material Plastic Flow in Twist Channel Angular Pressed Al/Cu Clad Composites

Kunčická

Klečková

2020

Materials

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The study focuses on structure analyses, texture analyses in particular, of an Al/Cu clad composite manufactured by single and double pass of the twist channel angular pressing (TCAP) method. Microscopic analyses were supplemented with numerical predictions focused on the effective imposed strain and material plastic flow, and microhardness measurements. Both the TCAP passes imparted characteristic texture orientations to the reinforcing Cu wires, however, the individual preferential grains’ orientations throughout the composite differed and depended on the location of the particular wire within the Al sheath during extrusion, i.e., on the dominant acting strain path. The second TCAP pass resulted in texture homogenization; all the Cu wires finally exhibited dominant A fiber shear texture. This finding was in accordance with the homogenization of the imposed strain predicted after the second TCAP pass. The results also revealed that both the component metals exhibited significant deformation strengthening (which also caused bending of the ends of the Cu wires within the Al sheath after extrusion). The average microhardness of the Cu wires after the second pass reached up to 128 HV, while for the Al sheath the value was 86 HV.

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Section: Methodsmentioning

confidence: 99%

Section: Numerically Predicted Plastic Flow and Imposed Strainmentioning

confidence: 99%

Structure Characteristics Affected by Material Plastic Flow in Twist Channel Angular Pressed Al/Cu Clad Composites

Kunčická

Klečková

2020

Materials

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“…The composite billet consisted of Al sheath and reinforcing Cu wires ( Figure 1 ), and was processed via two subsequent TCAP passes with the selected deformation route Bc . The deformation route was based on the Bc deformation route known from conventional ECAP, i.e., the composite billet was subjected to +90° rotation before the second pass [ 35 , 36 ]. However, due to the implemented twist, the effects of the deformation route on the billet, moreover a composite one, are expected to be different than those of conventional ECAP.…”

Section: Methodsmentioning

confidence: 99%

Deformation Behavior of Al/Cu Clad Composite During Twist Channel Angular Pressing

Kocich

2020

Materials

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The research and development of modern metallic materials goes hand in hand with increasing their lifetime via optimized deformation processing. The presented work deals with preparation of an Al/Cu clad composite with implemented reinforcing Cu wires by the method of twist channel angular pressing (TCAP). Single and double pass extrusion of the clad composite was simulated numerically and carried out experimentally. This work is unique as no such study has been presented so far. Detailed monitoring of the deformation behavior during both the passes was enabled by superimposed grids and sensors. Both the sets of results revealed that already the single pass imparted significant effective strain (higher than e.g., conventional equal channel angular pressing (ECAP)), especially to the Al matrix, and resulted in notable deformation strengthening of both the Al and Cu composite components, which was confirmed by the increased punch load and decreased plastic flow velocity (second pass compared to first pass). Processing via the second pass also resulted in homogenization of the imposed strain and residual stress across the composite cross-section. However, the investigated parameters featured slight variations in dependence on the monitored location across the cross-section.

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“…SSE has been partially reviewed and discussed in the literature, mostly in terms of comparison between different SPD techniques [34][35][36][37][38][39][40]. However, this technique and its variant, CSSE, pose several distinctive features that are thus far published in separate articles.…”

Section: Introductionmentioning

confidence: 99%

Simple shear extrusion as an efficient severe plastic deformation technique: A review

Ebrahimi

Lotfabad

2023

Materials Science and Technology

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Simple shear extrusion was designed in 2009 as a novel severe plastic deformation technique to obtain ultrafine-grained materials. During the past years, extensive work has been done to introduce and clarify this technique's characteristics and investigate its application in different areas of materials science and engineering. Owing to the inherent phenomenon of strain reversal associated with this technique and different available processing routes, this method is proven to be useful in material processing. This article aims to summarise the ability of this process to produce ultrafine-grained materials and discuss the potential of this process for industrialisation.

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Decade of Twist Channel Angular Pressing: A Review

Cited by 12 publications

References 67 publications

Structure Characteristics Affected by Material Plastic Flow in Twist Channel Angular Pressed Al/Cu Clad Composites

Structure Characteristics Affected by Material Plastic Flow in Twist Channel Angular Pressed Al/Cu Clad Composites

Deformation Behavior of Al/Cu Clad Composite During Twist Channel Angular Pressing

Simple shear extrusion as an efficient severe plastic deformation technique: A review

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