Fracture of filaments and its influence on critical current and residual strength of fatigued Nb–Ti/Cu superconducting composite

Ochiai, Shojiro; Oki, Yuichi; Sekino, Fumiaki; Hojo, Masaki; Tanaka, Mototsugu; Okuda, Hiroshi; Moriai, H.; Sakai, S.; Watanabe, Kazuo

doi:10.1016/s0011-2275(02)00169-8

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Thus Nb-Ti alloys are worthy of special attention [2]- [4]. These are used for the manufacture of superconducting cable employed as currentcarrying elements in the magnetic system for International Thermonuclear Experimental Reactor.…”

Section: Introductionmentioning

confidence: 99%

Microstructure of Superconducting Cable Components

Баранникова¹

2016

geomate

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Using atomic force, optical and electron microscopy methods, the changes in the microstructure and phase composition were investigated for the alloy Nb47%Ti used for the manufacture of superconducting cable employed as current-carrying elements in the magnetic system for International Thermonuclear Experimental Reactor. The test samples were prepared from the superconducting wire at an intermediate step of the drawing process for the area reduction Ø1.3→Ø1.2 mm. The effect of cold drawing and intermediate annealing on the properties of as-worked Nb-Ti alloy was assessed. Local strain zones were found to occur in the rupture area. The shape and chemical composition of Nb-Ti wire was examined for both a defect-free area and the rupture area. A Nb diffusion barrier was found to occur in the copper matrix of NbTi wire.

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Section: Introductionmentioning

confidence: 99%

Microstructure of Superconducting Cable Components

Баранникова¹

2016

geomate

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“…Materials traditionally used in electrical engineering have been to some extent supplanted by superconductive materials, which are cost-effective and suitable for a wide range of applications, in particular, nuclear energetics [1]. Thus Nb-Ti alloys are worthy of special attention [2][3][4][5]. These are used for the manufacture of superconducting cable employed as current-carrying elements in the ITER magnetic system.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Fine Structure Localized Plastic Deformation Zone of Superconducting Cable Components

Баранникова

Shlyakhova

Зуев

2014

AMM

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Using atomic force, optical and electron microscopy methods, the changes in the microstructure and phase composition were investigated for the alloy Nb47%Ti used for the manufacture of superconducting cable employed as current-carrying elements in the ITER magnetic system (abbr. for International Thermonuclear Experimental Reactor). The test samples were prepared from the superconducting wire at an intermediate step of the drawing process for the area reduction Ø1.3→Ø1.2 mm. The effect of cold drawing and intermediate annealing on the properties of as-worked Nb-Ti alloy was assessed. Local strain zones were found to occur in the rupture area. The shape and chemical composition of Nb-Ti wire was examined for both a defect-free area and the rupture area. A Nb diffusion barrier was found to occur in the copper matrix of Nb-Ti wire.

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