Scale Resistance of Titanium Silicide Ti5Si–Titanium-Aluminide TiAl3 Powder Composites

G. A. Pribytkov; Прибытков Г. А.; V. V. Korzhova; Коржова В. В.; I. A. Firsina; Фирсина И. А.; A. V. Baranovskiy; Барановский А. В.; V. P. Krivopalov; Кривопалов В. П.

doi:10.31857/S0044185623700225

Scale Resistance of Titanium Silicide Ti5Si–Titanium-Aluminide TiAl3 Powder Composites

Authors: Pribytkov G.A.¹, Korzhova V.V.¹, Firsina I.A.¹, Baranovskiy A.V.¹, Krivopalov V.P.¹
Affiliations:
1. Federal State Budgetary Institution “Institute of Strength Physics and Materials Science”, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia
Issue: Vol 59, No 2 (2023)
Pages: 181-187
Section: ФИЗИКО-ХИМИЧЕСКИЕ ПРОБЛЕМЫ ЗАЩИТЫ МАТЕРИАЛОВ
URL: https://rjsvd.com/0044-1856/article/view/663872
DOI: https://doi.org/10.31857/S0044185623700225
EDN: https://elibrary.ru/SZBLFM
ID: 663872

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Abstract

The microstructure, phase composition, and resistance to oxidation upon heating in air in the temperature range of 600–1100°С for composites synthesized in the gasless combustion mode of reactive powder mixtures of titanium, aluminum, and silicon have been studied. Silicide Ti5Si3 and titanium trialuminide TiAl3 were synthesized from two-component mixtures. The combustion products of ternary mixtures contain Ti5Si3 and TiAl3, the ratio of which depends on the aluminum content in the reaction mixtures. The scale resistance of the synthesized powder composites is determined to a greater extent by the microstructure of the granules than by their phase composition. The composition was determined of the reaction powder mixture, the combustion products of which have a scale resistance 1.5–3 times higher than the combustion products of the other studied compositions.

Keywords

titanium, titanium silicide, titanium trialuminide, gasless combustion, metal matrix composite, structure, scale resistance

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