Modeling the oxidation process of TiAl and Ti3Al intermetallic compounds due to grain-boundary diffusion of oxygen
https://doi.org/10.26907/2541-7746.2023.3.307-321
Abstract
A diffusion-kinetic model was proposed to analyze the oxidation process in a nanostructured material with explicit identification of grain boundaries. It was assumed that oxygen migrates faster along the boundaries than it does in the grain volume. The model takes into account the stages of decomposition and formation of intermetallic compounds, as well as the formation of oxides, both within the boundaries and in the grain volume. The problem was solved numerically, and the oxidation dynamics were compared for various materials with different grain properties.
Supporting agencies: This study was performed as part of the state assignment to the Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences (project no. FWRW-2022-0003).
About the Authors
M. V. Chepak-Gizbrekht
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Russian Federation
Russian Federation
Tomsk, 634021
A. G. Knyazeva
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Russian Federation
Russian Federation
Tomsk, 634021
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Review
For citations:
Chepak-Gizbrekht M.V., Knyazeva A.G. Modeling the oxidation process of TiAl and Ti3Al intermetallic compounds due to grain-boundary diffusion of oxygen. Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki. 2023;165(3):307-321. (In Russ.) https://doi.org/10.26907/2541-7746.2023.3.307-321
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