Effects of size and geometry on the plasticity of high-strength copper/tantalum nanofilamentary conductors obtained by severe plastic deformation
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In this paper, the microstructure and the strength of high-pulsed magnet wire reinforced by tantalum nanofilaments were characterized and the macroscopic strength was shown to be greater than rule-of-mixture predictions as confirmed by nanohardness values.About:
This article is published in Acta Materialia.The article was published on 2006-02-01 and is currently open access. It has received 40 citations till now. The article focuses on the topics: Severe plastic deformation & Plasticity.read more
Citations
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High strength and thermal stability of bulk Cu/Ta nanolamellar multilayers fabricated by cross accumulative roll bonding
L. Zeng,L. Zeng,Rui Gao,Qianfeng Fang,Qianfeng Fang,Xianping Wang,Z.M. Xie,Z.M. Xie,Shu Miao,Shu Miao,T. Hao,T. Zhang +11 more
TL;DR: In this article, a bulk Cu/Ta nanolamellar multilayers with an individual layer thickness from several micrometers down to 50nm were successfully fabricated via a combination of cross accumulative roll bonding (CARB) and an intermediate annealing step.
Journal ArticleDOI
Emergence of stable interfaces under extreme plastic deformation
TL;DR: It is proved that the preferred bimetal interface arising from extreme strains corresponds to a unique stable state, which can be predicted by two controlling stability conditions, and open a new frontier in the fabrication of stable nanomaterials with severe plastic deformation techniques.
Journal ArticleDOI
Nanostructured Al and Cu alloys with superior strength and electrical conductivity
M. Yu. Murashkin,M. Yu. Murashkin,Ilchat Sabirov,Xavier Sauvage,Ruslan Z. Valiev,Ruslan Z. Valiev +5 more
TL;DR: In this paper, it was demonstrated that mechanical strength and electrical conductivity of Al and Cu alloys are primarily controlled by their microstructure, of which grain size, morphology of second phases, and their distribution, as well as dislocation structure, are the most important parameters.
Journal ArticleDOI
Structure, shear resistance and interaction with point defects of interfaces in Cu–Nb nanocomposites synthesized by severe plastic deformation
TL;DR: In this paper, atomistic modeling is used to investigate the shear resistance and interaction with point defects of a Cu-Nb interface found in nanocomposites synthesized by severe plastic deformation.
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Processing of nanostructured metals and alloys via plastic deformation
TL;DR: In this article, the principles of grain refinement by plastic deformation and an introduction to the reported processing techniques are given, and four most promising and promising techniques are described in detail: equal-channel angular pressing, high-pressure torsion, accumulative roll bonding, and surface mechanical attrition treatment for nanostructured surface layers.
References
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An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
Warren C. Oliver,George M. Pharr +1 more
TL;DR: In this paper, the authors used a Berkovich indenter to determine hardness and elastic modulus from indentation load-displacement data, and showed that the curve of the curve is not linear, even in the initial stages of the unloading process.
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Anomalous increase in strength of in situ formed Cu‐Nb multifilamentary composites
TL;DR: In this paper, Niobium-Nb wire composites with 0.105, 0.148, and 0.182 volume fraction of Nb filaments were produced in situ and their mechanical properties measured as a function of filament size and interfilament spacing.
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Characterization of the strength and microstructure of heavily cold worked CuNb composites
TL;DR: In this paper, the authors evaluated the mechanical properties and microstructures of heavily cold worked wires of Cu-12% Nb and Nb-20% composites and found that the strength of these composites increases dramatically with increasing deformation up to a true strain of 11.9, the maximum investigated.
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Mechanical alloying of Cu and Fe induced by severe plastic deformation of a Cu-Fe composite
TL;DR: In this paper, a filamentary composite elaborated by cold drawing was processed by High Pressure Torsion (HPT) and the nanostructure resulting from this severe plastic deformation (SPD) was investigated thanks to scanning electron microscopy and X-ray diffraction.
Posted Content
Mechanical alloying of Cu and Fe induced by severe plastic deformation of a Cu-Fe composite
TL;DR: In this article, a filamentary composite elaborated by cold drawing was processed by High Pressure Torsion (HPT) and the nanostructure resulting from this severe plastic deformation (SPD) was investigated thanks to scanning electron microscopy and X-ray diffraction.