Abstract
The effects of annealing time and temperature on the structure and superconducting characteristics (critical current and superconducting transtormation temperature) of Nb-Ti alloys are studied individually. Heat treatment raises the critical current density of cold-worked alloys. The maximum critical current density is achieved in a Nb-75%Ti alloy (105 A/cm2 in a field of 26 kOe) after annealing at 450° (for 1 h in final annealing or 10 h after intermediate annealing). The transtormation temperature rises to 8.6°K in the annealed alloys. The effect of heat treatment on the superconducting characteristics is associated with the decomposition of the original β solid solution of the cold-worked Nb-Ti alloys.
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Bychkova, M.I., Baron, V.V., Savitskii, E.M. (1970). Effect of Heat Treatment on the Superconducting Properties of Nb—Ti Alloys. In: Savitskii, E.M., Baron, V.V. (eds) Physics and Metallurgy of Superconductors / Metallovedenie, Fiziko-Khimiya I Metallozipika Sverkhprovodnikov / Металловедение Физико-Химип и Металлофизика Сверхпроводников. Springer, New York, NY. https://doi.org/10.1007/978-1-4684-8220-1_9
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DOI: https://doi.org/10.1007/978-1-4684-8220-1_9
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