Abstract
The degree of tetragonality of TiAl and the effect of vanadium doping on it are studied theoretically in the framework of the coherent-potential approximation using ab initio potentials. It is shown that substitution of vanadium for Ti increases the degree of tetragonality, whereas substitution of vanadium for aluminum decreases the degree of tetragonality of the TiAl: V alloy and the lattice becomes virtually cubic when the vanadium content is about 8 at. %; this, in turn, can increase the plasticity of TiAl, which is brittle at low temperatures.
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Translated from Fizika Tverdogo Tela, Vol. 46, No. 8, 2004, pp. 1345–1347.
Original Russian Text Copyright © 2004 by Smirnova, Isaev, Vekilov.
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Smirnova, E.A., Isaev, É.I. & Vekilov, Y.K. Effect of vanadium doping on the structure of TiAl: Ab initio calculations. Phys. Solid State 46, 1383–1385 (2004). https://doi.org/10.1134/1.1788766
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DOI: https://doi.org/10.1134/1.1788766