Fine structural characterization of the elements of a Nb-Ti superconducting cable
Source abstract
Abstract
A niobium-titanium alloy (Nb + 47%Ti) superconducting cable that acts as a current-carrying element in the magnetic system of the international thermonuclear experimental reactor (ITER) has been subjected to cold deformation by drawing. Its microstructure, phase composition and properties have been monitored via atomic force microscopy, electron microscopy and optical microscopy methods at the intermediate stage of cold drawing upon the transition of Ø1.3 → Ø1.2 mm. Plastic deformation centers are established to be localized at the breakage sites of the cable, and the shape and chemical composition of Nb-Ti fibers are determined at the defect-free region and breakage sites, as well. A partial lack of diffusion Nb barriers is also highlighted around Nb-Ti fibers at the breakage sites. Keywords: Superconductors, Defects, Microstructure, Plastic deformation localization, Drawing
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Superconducting Materials and Applications · Particle accelerators and beam dynamics · Particle Accelerators and Free-Electron Lasers
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
Show source-provided references
1. Study on Ic (T, B) for the Nb-Ti strand intended for ITER PF insert coil10.1109/TASC.2004.830385 ↗
2. NbTi conductors with very low loss: a review10.1016/j.cryogenics.2008.04.008 ↗
3. Parametric estimation study of interstrand conductance in multi-strand superconducting cables10.1016/j.cryogenics.2007.08.009 ↗
4. Fracture of filaments and its influence on critical current and residual strength of fatigued Nb-Ti/Cu superconducting composite10.1016/S0011-2275(02)00169-8 ↗
5. Effect of deformation and heat treatment with equal-channel, multiple-angle pressing on the superconducting properties of NbTi alloy10.1063/1.3533234 ↗
6. High titanium Nb-Ti alloys initial microstructural studies
7. The microstructure and critical current density of Nb-48wt.%Ti superconductor with very high alpha-Ti precipitate volume and very high critical current10.1063/1.1472628 ↗
8. Structure and properties of differently directed deformed niobium-titanium alloy10.1109/TASC.2005.849017 ↗
9. Microstructure of elements of a superconducting alloy Nb-Ti cable10.1134/S0036029513030129 ↗
10. On structure of localization zones of plastic deformation in superconductive cable based on Nb-Ti alloy
11. Shikov A, Vedernikov G, Plashkin E. Patent RU 2291505 C2. Bulletin No. 1 of 10.01.2007.
12. Thermoelastic state of bimetallic blank in drawing10.3103/S0967091210100037 ↗
13. A microscopic model of superconductor stability10.1007/s10948-012-1800-1 ↗
14. A 3D model on the electromechanical behavior of a multifilament twisted Nb3Sn superconducting strand10.1007/s10948-015-3080-z ↗
15. On the kinetics of localized plasticity domains emergent at the pre-failure stage of deformation process10.1063/1.4966461 ↗
16. Localized strain autowaves at the initial stage of plastic flow in single crystals10.1134/1.1626775 ↗
17. Experimental study of plastic flow macro-scale localization process: pattern, propagation rate, dispersion10.1016/j.ijmecsci.2014.06.012 ↗