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Titanium-boride eutectic materials. Structure of the Ti-Nb-B alloys and phase equilibria

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Abstract

The structure of Ti-Nb-B alloys that are cast and annealed at subsolidus temperatures and at 1400°C is experimentally analyzed (x-ray diffraction, metallography, and electron probe microanalysis), and so are temperatures of their phase transformations (differential thermal analysis and pyrometry). No ternary phases are found in the alloys. Projections of solidus and liquidus surfaces, an isothermal section at 1400°C, and a vertical section at 7.5 at.% B are constructed. A reaction scheme is proposed for alloy crystallization.

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Authors and Affiliations

  1. Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev

    D. B. Borisov, L. V. Artyukh, A. A. Bondar, P. S. Martsenyuk, A. V. Samelyuk, N. I. Tsiganenko, O. S. Fomichov & T. Ya. Velikanova

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  1. D. B. Borisov
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  3. A. A. Bondar
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Translated from Poroshkovaya Metallurgiya, Vol. 46, No. 1–2(453), pp. 72–87, 2007.

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Borisov, D.B., Artyukh, L.V., Bondar, A.A. et al. Titanium-boride eutectic materials. Structure of the Ti-Nb-B alloys and phase equilibria. Powder Metall Met Ceram 46, 58–71 (2007). https://doi.org/10.1007/s11106-007-0011-y

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