Titanium-Based Layered Armour Elements Manufacture with 3D-Printing Approach

Abstract

Triple layer titanium-based plate consisted of Ti–6Al–4V and CP–Ti layers 3D-printed on T110 substrate was tested for antiballistic protection. Micro-structure after ballistic testing, hardness and three-point flexure character-istics of the layered material were studied and analysed. Interfaces between layers are important structure features contributing antiballistic protection characteristics. 3D-printed layers demonstrated sufficient bonding without porosity and other defects at interfaces, which resulted in promising antibal-listic protection against high-energy B32 projectiles. Difference in micro-structure, strength, hardness and ductile properties of individual layers re-sulted in noticeable variation of mechanical behaviour of layered materials depending on direction of applied force giving potential for further im-provement of protecting characteristics.