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Strengthening and structure refinement of a Cu-TiNb composite superconductor upon rolling with current

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Abstract

The possibility of using a pulse current during cold rolling for obtaining monofilamentary and multifilamentary composite superconductors based on a NbTi alloy has been investigated. It has been established that a superconductor is greatly strengthened in the course of treatment. It has been shown that an increase in superconductor strength and hardness is caused not only by strain hardening, but also by precipitation hardening due to the action of current. It has been discovered that, during deformation with pulse current, a structure consisting of parent-phase nanosized grains and α-Ti precipitates forms in the alloy.

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Authors and Affiliations

  1. Blagonravov Institute of Machines Science, Russian Academy of Sciences, Malyi Khariton’evskii per. 4, Moscow, 101990, Russia

    V. V. Stolyarov

  2. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, Russia

    V. V. Stolyarov

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  1. V. V. Stolyarov
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Correspondence to V. V. Stolyarov.

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Original Russian Text © V.V. Stolyarov, 2015, published in Problemy Mashinostroeniya i Nadezhnosti Mashin, 2015, No. 4, pp. 82–88.

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Stolyarov, V.V. Strengthening and structure refinement of a Cu-TiNb composite superconductor upon rolling with current. J. Mach. Manuf. Reliab. 44, 372–377 (2015). https://doi.org/10.3103/S1052618815040135

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  • DOI: https://doi.org/10.3103/S1052618815040135

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