Effect of deformation and annealing on texture parameters of composite Cu–Nb wire

Попова, Е. Н.; Popov, V. V.; Романов, Е. П.; Hlebova, N.E.; Shikov, A.K.

doi:10.1016/j.scriptamat.2004.05.037

Cited by 32 publications

(30 citation statements)

References 16 publications

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“…According to several studies [67][68][69] intermediate recrystallization annealing and severe deformation (ε < 9) may affect and change the crystallographic orientations of deformed copper matrix. On the one hand, they showed that copper, which has undergone a deformation of ε < 9, develops a 111 structural component in majority and more stable [70,71].…”

Section: Location Of Grainmentioning

confidence: 99%

Nanostructured Multifilamentary Carbon‐Copper Composites: Fabrication, Microstructural Characterization, and Properties

Nzoma

Guillet

Pareige

2012

Journal of Nanomaterials

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This work is part of research on the emerging techniques to produce bulk nanostructured composites materials by severe plastic deformation and their characterization. Based on the Levi work, we present a new method to synthesize a composite wire-containing carbon-nanosized filaments (graphite and C60fullerenes) embedded in a copper matrix. The originality of this process is using powder media as fiber. Microstructures and electrical, mechanical, and thermal properties are presented.

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Section: Location Of Grainmentioning

confidence: 99%

Nanostructured Multifilamentary Carbon‐Copper Composites: Fabrication, Microstructural Characterization, and Properties

Nzoma

Guillet

Pareige

2012

Journal of Nanomaterials

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“…Those authors have found that the h100i fibre decreases during large strain, possibly due to dynamic recrystallisation induced by large strain. In our case, the UFG material underwent eight passes in ECAP route Bc, which represents a shear strain of $8 already before micro-extrusion (equivalent strain of 4.6); thus, the total plastic strain (4.6 þ 2.8) is in the same range as in [36]. In conclusion, both DRX and the shear component of the strain decrease the h100i fibre intensity.…”

Section: Simulation Results and Discussionmentioning

confidence: 67%

“…Therefore, the temperature rise produced by the plastic work and the friction with the die must have been much more significant in the UFG material than in the CG case, leading to dynamic recrystallisation (DRX) of the sample [34,35]. The occurrence of recovery and dynamic recrystallisation is also discussed in [36], where the relative proportion of the h111i and h100i fibres were examined in the copper matrix of a Cu-Nb wire composite. Those authors have found that the h100i fibre decreases during large strain, possibly due to dynamic recrystallisation induced by large strain.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Texture evolution and grain refinement of ultrafine-grained copper during micro-extrusion

Tóth²,

Lapovok

et al. 2010

Philosophical Magazine

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Samples of oxygen-free high conductivity (OFHC) coarse-grained (CG) and ultrafine-grained (UFG) copper were micro-extruded to an equivalent strain of 2.8 in one pass at room temperature. Samples of the OFHC copper were annealed at 650 C for 2 h to produce CG copper. Some samples were subsequently processed by equal channel angular pressing of eight passes, route Bc, at room temperature to produce the UFG material. Crystallographic texture and misorientation distributions were obtained locally from EBSD mappings at different radial positions after micro-extrusion. To model the strain path during micro-extrusion, the analytic flow line model of Altan et al. [J Mater. Process. Tech. 33 (1992) p.263] was used and also validated by finite element calculations. Modelling was carried out using the viscoplastic self-consistent (VPSC) model and a recently developed grain refinement model. The results showed large texture variations along the cross-section of the extruded sample for both UFG and CG copper. These cyclic drawing textures in UFG copper were simulated in good agreement with experiments using the presented modelling framework.

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“…[1] As packaging technology continues to advance, deformation details of cold-drawn fcc metals, such as Au, Cu, and Ag, were investigated by many researchers in order to understand their properties. [2][3][4][5][6] It is accepted that duplex fiber textures consisting of h111i and h100i parallel to the drawn direction form in drawn fcc metals. Hibbard [5] found that the volume fraction of the h111i fiber texture component increases with increasing strain.…”

Section: Jian Chen Wen Yan Jian Miao Chunxia Liu and Xinhui Fanmentioning

confidence: 99%

“…Although a large number of studies [2][3][4][5][6][7][8][9][10][11][12] were done on cold-drawn fcc metals, some important aspects have been ignored. First, in order to analyze the properties of drawn metals, microstructure and texture should be characterized systematically, but in previous work, only texture evolution is considered and few studies of microstructure evolution have been published.…”

Section: Jian Chen Wen Yan Jian Miao Chunxia Liu and Xinhui Fanmentioning

confidence: 99%

Microstructure and Texture Evolution of Cold-Drawn 〈111〉 Single-Crystal Copper

Chen

Wen

Jiang

et al. 2011

Metall Mater Trans A

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The evolution of microstructure and texture in drawn h111i single-crystal copper with strains from 0.28 to 4.12 was analyzed. The texture analysis shows that in drawn h111i single-crystal copper, grain subdivision takes place, and at high strains, fiber textures consist of h111i and h100i. However, the distribution of fiber textures is inhomogeneous along the radial direction. h111i is located in the center of samples and h100i is near the surface. Comparison of the texture evolution of drawn h111i and h100i single-crystal coppers indicates that the initial orientation is an important factor affecting the ratio of fiber texture h111i to h100i. The results of microstructure show that at strains lower than 0.28, microstructure can be characterized as dislocation cells and few microbands. When strains are more than 0.58, a large number of extended planar dislocation boundaries appear. At strains more than 1.96, most of the extended planar boundaries are parallel to the drawn direction.

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Effect of deformation and annealing on texture parameters of composite Cu–Nb wire

Cited by 32 publications

References 16 publications

Nanostructured Multifilamentary Carbon‐Copper Composites: Fabrication, Microstructural Characterization, and Properties

Nanostructured Multifilamentary Carbon‐Copper Composites: Fabrication, Microstructural Characterization, and Properties

Texture evolution and grain refinement of ultrafine-grained copper during micro-extrusion

Microstructure and Texture Evolution of Cold-Drawn 〈111〉 Single-Crystal Copper

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