Features of twist extrusion: method, structures & material properties

Yan Beygelzimer, Dmitro Orlov, Alexander Korshunov, Sergiy Synkov, Victor Varyukhin, I Vedernikova, Aleksey Reshetov, Alexander Synkov, L Polyakov, I. Korotchenkova

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

During the last decade it has been shown that severe plastic deformation (SPD) is a very effective for obtaining ultra-fine grained (UFG) and nanostructured materials. The basic SPD methods are High Pressure Torsion (HPT) and Equal Channel Angular Extrusion (ECAE). Recently several new methods have been developed: 3D deformation, Accumulative Roll Bonding, Constrained Groove Pressing, Repetitive Corrugation and Straightening, Twist Extrusion (TE), etc. In this paper the twist extrusion method is analyzed in terms of SPD processing and the essential features from the "scientific" and "technological" viewpoint are compared with other SPD techniques. Results for commercial, 99.9 wt.% purity, copper processed by TE are reported to show the effectiveness of the method. UFG structure with an average grain size of ∼0,3 um was produced in Cu billets by TE processing. The mechanical properties in copper billets are near their saturation after two TE passes through a 60° die. Subsequent processing improves homogeneity and eliminates anisotropy. The homogeneity of strength for Cu after TE is lower than after ECAE by route Bc, but higher than after ECAE by route C. The homogeneity in ductility characteristics was of almost of inverse character. The comparison of mechanical properties inhomogeneity in Cu after TE and ECAE suggests that alternate processing by ECAE and TE should give the most uniform properties.

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Extrusion
Materials properties
plastic deformation
homogeneity
billets
routes
mechanical properties
Plastic deformation
copper
pressing
ductility
grooves
torsion
purity
inhomogeneity
Processing
grain size
fine structure
saturation
Copper

Keywords

  • grain refinement
  • property analysis
  • severe plastic deformation
  • structure
  • twist extrusion

Cite this

Beygelzimer, Y., Orlov, D., Korshunov, A., Synkov, S., Varyukhin, V., Vedernikova, I., ... Korotchenkova, I. (2006). Features of twist extrusion: method, structures & material properties. Solid State Phenomena, 114, 69-78. [70567]. https://doi.org/10.4028/www.scientific.net/SSP.114.69
Beygelzimer, Yan ; Orlov, Dmitro ; Korshunov, Alexander ; Synkov, Sergiy ; Varyukhin, Victor ; Vedernikova, I ; Reshetov, Aleksey ; Synkov, Alexander ; Polyakov, L ; Korotchenkova, I. / Features of twist extrusion : method, structures & material properties. In: Solid State Phenomena. 2006 ; Vol. 114. pp. 69-78.
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Beygelzimer, Y, Orlov, D, Korshunov, A, Synkov, S, Varyukhin, V, Vedernikova, I, Reshetov, A, Synkov, A, Polyakov, L & Korotchenkova, I 2006, 'Features of twist extrusion: method, structures & material properties' Solid State Phenomena, vol. 114, 70567, pp. 69-78. https://doi.org/10.4028/www.scientific.net/SSP.114.69

Features of twist extrusion : method, structures & material properties. / Beygelzimer, Yan; Orlov, Dmitro; Korshunov, Alexander; Synkov, Sergiy; Varyukhin, Victor; Vedernikova, I; Reshetov, Aleksey; Synkov, Alexander; Polyakov, L; Korotchenkova, I.

In: Solid State Phenomena, Vol. 114, 70567, 31.07.2006, p. 69-78.

Research output: Contribution to journalArticle

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T1 - Features of twist extrusion

T2 - Solid State Phenomena

AU - Beygelzimer, Yan

AU - Orlov, Dmitro

AU - Korshunov, Alexander

AU - Synkov, Sergiy

AU - Varyukhin, Victor

AU - Vedernikova, I

AU - Reshetov, Aleksey

AU - Synkov, Alexander

AU - Polyakov, L

AU - Korotchenkova, I.

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Y1 - 2006/7/31

N2 - During the last decade it has been shown that severe plastic deformation (SPD) is a very effective for obtaining ultra-fine grained (UFG) and nanostructured materials. The basic SPD methods are High Pressure Torsion (HPT) and Equal Channel Angular Extrusion (ECAE). Recently several new methods have been developed: 3D deformation, Accumulative Roll Bonding, Constrained Groove Pressing, Repetitive Corrugation and Straightening, Twist Extrusion (TE), etc. In this paper the twist extrusion method is analyzed in terms of SPD processing and the essential features from the "scientific" and "technological" viewpoint are compared with other SPD techniques. Results for commercial, 99.9 wt.% purity, copper processed by TE are reported to show the effectiveness of the method. UFG structure with an average grain size of ∼0,3 um was produced in Cu billets by TE processing. The mechanical properties in copper billets are near their saturation after two TE passes through a 60° die. Subsequent processing improves homogeneity and eliminates anisotropy. The homogeneity of strength for Cu after TE is lower than after ECAE by route Bc, but higher than after ECAE by route C. The homogeneity in ductility characteristics was of almost of inverse character. The comparison of mechanical properties inhomogeneity in Cu after TE and ECAE suggests that alternate processing by ECAE and TE should give the most uniform properties.

AB - During the last decade it has been shown that severe plastic deformation (SPD) is a very effective for obtaining ultra-fine grained (UFG) and nanostructured materials. The basic SPD methods are High Pressure Torsion (HPT) and Equal Channel Angular Extrusion (ECAE). Recently several new methods have been developed: 3D deformation, Accumulative Roll Bonding, Constrained Groove Pressing, Repetitive Corrugation and Straightening, Twist Extrusion (TE), etc. In this paper the twist extrusion method is analyzed in terms of SPD processing and the essential features from the "scientific" and "technological" viewpoint are compared with other SPD techniques. Results for commercial, 99.9 wt.% purity, copper processed by TE are reported to show the effectiveness of the method. UFG structure with an average grain size of ∼0,3 um was produced in Cu billets by TE processing. The mechanical properties in copper billets are near their saturation after two TE passes through a 60° die. Subsequent processing improves homogeneity and eliminates anisotropy. The homogeneity of strength for Cu after TE is lower than after ECAE by route Bc, but higher than after ECAE by route C. The homogeneity in ductility characteristics was of almost of inverse character. The comparison of mechanical properties inhomogeneity in Cu after TE and ECAE suggests that alternate processing by ECAE and TE should give the most uniform properties.

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KW - property analysis

KW - severe plastic deformation

KW - structure

KW - twist extrusion

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VL - 114

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SN - 1012-0394

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Beygelzimer Y, Orlov D, Korshunov A, Synkov S, Varyukhin V, Vedernikova I et al. Features of twist extrusion: method, structures & material properties. Solid State Phenomena. 2006 Jul 31;114:69-78. 70567. https://doi.org/10.4028/www.scientific.net/SSP.114.69