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Combustion, Explosion and Shock Waves

2021 year, number 1

Self-Propaging High-Temperature Synthesis of Mechanically Activated Mixtures in CO-Ti-Al

S. G. Vadchenko, M. L. Busurina, E. V. Suvorova, N. I. Mukhina, I. D. Kovalev, A. E. Sychev
Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, 142432 Russia
Keywords: mechanical activation, intermetallic compounds, Co-Ti-Al system, SHS, thermal explosion, Heusler alloy

Abstract

Combustion of mechanically activated mixtures in 2Co-Ti-Al and Co-2Ti-Al is investigated, and alloys based on them are synthesized in self-propagating high-temperature synthesis. Microstructural, X-ray, and differential-thermal studies are performed. A Heusler phase Co2TiAl-based alloy is obtained for the first time by means of mechanical activation. Conditions for the mechanical activation of a reacting powder mixture for the formation of a single-phase material is experimentally selected.