Structure and Properties of Experimental Low-Cost Titanium Alloys

Abstract:

Phase components of experimental low cost titanium alloys, their substructure and parameters, dislocation structure, features of phase formation in the metal, which differ in alloying systems, were studied using complex research methods. The stoichiometric composition of dispersed phases in the internal volumes of alloy grains was determined by diffraction patterns using transmission electron microscopy. It is shown that in the structure of titanium alloy Ti-2,8Al-5,1Mo-4,9Fe there are dispersed nanoparticles of intermetallic phases of different morphology and stoichiometric composition. These are the phases: Ti₃Al and Fe₂Ti with a size of 10…40 nm; Mo₉Ti₄ - 20…120 nm. Studies of titanium alloy Ti-1,5Fe-O showed the presence in the structure of mainly nanoparticles of oxides: Ti₃O₅ size 10…30 nm and Ti₄Fe₂O, FeTiO₅ (10…90 nm), as well as intermetallics Fe₂Ti (10…40 nm). It is established that the formation of nanoparticles of intermetallic and oxide phases in the thin plate structure of the investigated experimental low cost titanium alloys promotes the formation of the substructure with uniform distribution of dislocation density. This provides a high level of mechanical properties of alloys.

• Periodical: Key Engineering Materials (Volume 1041)
• Pages: 51-58
• DOI: https://doi.org/10.4028/p-a4lEd4
• Online since: February 2026
• Authors: Svitlana Hryhorenko, Olena M. Berdnikova, Olga Kushnarova, Valery Kostin, Yevhenii Titkov*, Liubov Yeremeieva
• Keywords: Dislocations, Low Cost Titanium Alloys, Mechanical Properties, Microstructure, Nanoparticles, Phase Composition, Stechiometric Composition, Substructure

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