Structure Formation during High-Temperature Synthesis in an Activated Ti + Al Powder Mixture
- Authors: Filimonov V.Y.1,2, Loginova M.V.1, Sobachkin A.V.1, Ivanov S.G.1, Sitnikov A.A.1, Yakovlev V.I.1, Negodyaev A.Z.1, Myasnikov A.Y.1,3
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Affiliations:
- Altai State Technical University
- Institute for Water and Environmental Problems, Siberian Branch, Russian Academy of Sciences
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
- Issue: Vol 55, No 11 (2019)
- Pages: 1097-1103
- Section: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158790
- DOI: https://doi.org/10.1134/S0020168519110049
- ID: 158790
Cite item
Abstract
This paper presents a detailed experimental study of phase formation processes in a mechanically activated Ti + Al powder mixture. High-temperature synthesis has been performed in thermal explosion mode using induction heating of the mixture. We present the first evidence that, during a continuous transition from rapid heating to high-temperature annealing, the composition of the synthesis products depends on the secondary structuring time. Early stages of annealing involve structural relaxation processes, which make the phase composition more uniform and lead to the formation of an essentially single-phase TiAl compound. In later stages, the system undergoes a transition to thermodynamic equilibrium, which is accompanied by the formation of compounds that are in equilibrium at the annealing temperature.
About the authors
V. Yu. Filimonov
Altai State Technical University; Institute for Water and Environmental Problems, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: vyfilimonov@rambler.ru
Russian Federation, pr. Lenina 46, Barnaul, 656038; Molodezhnaya ul. 1, Barnaul, 656038
M. V. Loginova
Altai State Technical University
Email: vyfilimonov@rambler.ru
Russian Federation, pr. Lenina 46, Barnaul, 656038
A. V. Sobachkin
Altai State Technical University
Email: vyfilimonov@rambler.ru
Russian Federation, pr. Lenina 46, Barnaul, 656038
S. G. Ivanov
Altai State Technical University
Email: vyfilimonov@rambler.ru
Russian Federation, pr. Lenina 46, Barnaul, 656038
A. A. Sitnikov
Altai State Technical University
Email: vyfilimonov@rambler.ru
Russian Federation, pr. Lenina 46, Barnaul, 656038
V. I. Yakovlev
Altai State Technical University
Email: vyfilimonov@rambler.ru
Russian Federation, pr. Lenina 46, Barnaul, 656038
A. Z. Negodyaev
Altai State Technical University
Email: vyfilimonov@rambler.ru
Russian Federation, pr. Lenina 46, Barnaul, 656038
A. Yu. Myasnikov
Altai State Technical University; Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
Email: vyfilimonov@rambler.ru
Russian Federation, pr. Lenina 46, Barnaul, 656038; ul. Kutateladze 18, Novosibirsk, 630128
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