Structure and Phase Formation in the Ti-Al-Nb System in the Thermal Explosion Mode
M. L. Busurina, L. M. Umarov, I. D. Kovalev, N. V. Sachkova, S. M. Busurin, S. G. Vadchenko, A. E. Sychecv
Institute of Structural Macrokinetics and Materials Sciences, Chernogolovka, 142432 Russia
Keywords: алюминид титана, Ti-Al-Nb, фазообразование, самораспространяющийся высокотемпературный синтез, titanium aluminide, phase formation, self-propagating high temperature synthesis
Abstract
The features of the structure and phase formation in the Ti : Nb : 2Al, Ti : Nb : 2.5Al and Ti : Nb : 3Al systems in the self-propagating high-temperature synthesis in the thermal explosion mode. The morphology, phase composition, microstructure, and physical properties have been studied. It has been found that compounds with the highest content of aluminum have the most homogeneous composition and the lowest porosity. The main phase of the product synthesis is a phase based a solid solution of Nb in γ-TiAl.
DOI: 10.1134/S0010508216060058
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