Chemical composition and mechanical characteristics in titanium alloys

Heading: 
Space Materials and Technologies
Polishko, SO
Space Sci. & Technol. 2026, 32 ;(1):68-75
https://doi.org/10.15407/knit2026.01.068
Publication Language: English
Abstract: 
This article examines approaches to enhancing the plasticity and toughness of multicomponent titanium alloys while minimizing energy consumption. Particular attention is given to titanium alloys VT1-00, VT1-0, OT4, OT4-1, OT4-2, VT6, VT6C, VT5-1, VT23, VT3-1, VT8, VT9, and VT22, which are key materials in aerospace and rocket engineering. The study analyzes the chemical composition, deformation behavior, and thermal treatment of titanium alloys with different degrees of alloying: unalloyed, medium-alloyed, and high-alloyed. The influence of impurities on the mechanical properties of titanium alloys at various temperatures is also examined. It is shown that impurities of different types can significantly affect mechanical characteristics by altering crystal lattice parameters and indicators of plasticity, strength, and toughness. Alloying elements such as Al, Mo, V, Mn, and Fe deform the titanium crystal lattice to varying degrees. The changes in strength and plasticity at elevated temperatures were also investigated. High-alloyed titanium alloys demonstrate greater resistance to high-temperature conditions. The results confirm that the structure and phase formation of titanium alloys can be effectively controlled by optimal selection of alloying elements and consideration of impurity effects. This makes it possible to improve plasticity and toughness while reducing energy costs. The findings are important for the continued development and optimization of titanium alloys used in critical aerospace applications.
Keywords: chemical composition, mechanical characteristics, modification, plasticity characteristics, titanium alloys
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