Abstract
Bronzes with an enhanced (14 wt %) tin content which were alloyed with titanium, zirconium, and boron have been studied in the as-cast, homogenized, and deformed states by scanning and transmission electron microscopy and X-ray diffraction analysis. These alloys are of interest as a matrix material for superconducting Nb/Cu-Sn composites in which the high tin content and the alloying of the bronze matrix make it possible to improve superconducting characteristics at the expense of optimization of the structure and properties of layers of the Nb3Sn compound formed at the niobium-bronze interface via reactive diffusion. The distribution of alloying elements in different states of the bronze has been investigated. It has been shown that Zr is uniformly distributed in the alloy and forms no coarse inclusions, whereas Ti forms in the as-cast state large platelike precipitates that can adversely affect technological characteristics of the bronze matrix and the composite as a whole.
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Original Russian Text © E.N. Popova, S.V. Sudareva, E.P. Romanov, E.A. Dergunova, I.M. Abdyukhanov, A.E. Vorob’eva, L.V. Elokhina, 2007, published in Fizika Metallov i Metallovedenie, 2007, Vol. 103, No. 2, pp. 165–179.
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Popova, E.N., Sudareva, S.V., Romanov, E.P. et al. Effect of alloying on the structure of bronze with enhanced tin content. Phys. Metals Metallogr. 103, 160–173 (2007). https://doi.org/10.1134/S0031918X07020068
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DOI: https://doi.org/10.1134/S0031918X07020068