titanium-based materials, which combine high strength and hardness of surface layer along with sufficient ductile characteristics of the matrix metal, are very promising for various applications, particularly, as armoured components in military-industrial complex. Above-mentioned combination of properties can be achieved by means of the creation of multilayer structures, which consist of layers possessing different physical and mechanical properties. In the present study, microstructure peculiarities, mechanical and antiballistic protection properties of the layered tibased materials are investigated. two different ways were used for fabrication of such the layered structures. the first one is a conventional metallurgical (ingotwrought) method followed by the surface rapid heat treatment of the ті-6Al-4V and t110 alloys for fabrication of graded structures with different mechanical properties over the material depth. the second one is an elemental powder metallurgy method for fabrication of the structures combining layers of the ti-6Al-4V alloy and composites based on it and hardened with tic or tib particles. ballistic tests of the obtained materials are carried out for different types of projectiles with different kinetic energy and hardness of the core; features of the penetration of the hitting elements are performed depending on the material structural state. It is proved that materials with graded and layered structures demonstrate undeniable advantages in the antiballistic protection characteristics as compared with homogeneous alloys of the same thickness.

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Microstructure and antiballistic protection characteristics for two types of titanium-based layered materials are studied. Binary layered armour material consisted of Ti-6Al-4V alloy and Ti-6Al-4V-10% vol. TiC metal matrix composite layers are produced using powder metallurgy and subsequent HIP treatment. Ternary Ti-6Al-4V/CP-Ti/Ti-6Al-4V armour plate is made using additive manufacturing technology. Both types of materials demonstrated a significant superiority in ballistic resistance to armor-piercing incendiary cartridges compared to uniform titanium alloys. Material microstructure and hardness, projectile penetration depth and kinetic energy are analysed to understand contribution of each layer in projectile retardation and energy dissipation. Hard front composite layer effectively retards the projectiles than softer and ductile Ti-6Al-4V and CP-Ti layers, while combination of these materials ensures lower penetration depth and absence of armour cracking on high-energy ballistic impact.

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