Modeling the oxidation process of TiAl and Ti<sub>3</sub> Al intermetallic compounds due to grain-boundary diffusion of oxygen-Reference-Cited by-同舟云学术

Modeling the oxidation process of TiAl and Ti<sub>3</sub> Al intermetallic compounds due to grain-boundary diffusion of oxygen

Published:2024-01-12 Issue:3 Volume:165 Page:307-321
ISSN:2500-2198
Container-title:Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki
language:
Short-container-title:jour

Author:

Chepak-Gizbrekht M. V.¹,Knyazeva A. G.¹

Affiliation:

1. Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences

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.

Publisher

Kazan Federal University

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