International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Hot deformation is a promising approach for modification the microstructure of metallic materials, as it combines the simultaneous action of elevated temperature and mechanical loading. Under these conditions, intense plastic flow increases the density of crystal lattice defects and promotes dynamic recrystallization, resulting in grain refinement and a corresponding increase in the grain boundary density. Since grain boundaries serve as effective vacancy sinks, the formation of such deformed and recrystallized microstructures enhances vacancy diffusion and activates pore elimination, thereby promoting densification and the formation of low-porosity or nearly fully dense materials.

Titanium–titanium boride (Ti/TiB) metal matrix composites have been widely identified as promising materials for various applications. The traditional ingot metallurgy processing strategies used to fabricate these materials are energy intensive and have fallen short of their perceived mass production potentials. Powder metallurgy processing, especially that aimed at in-situ synthesis of Ti/TiB composites from titanium and TiB2 powder blends, is currently widely used for the cost-efficient production of such composites. Additional processing by the method of hot pressing improves the structure and mechanical properties of this class of materials.

Direct Metal Laser Sintering (DMLS) is a revolutionary technology that allows a production of fully functional metal parts directly from a 3D CAD data, eliminating the investment to production tools and technologies which brings considerable cost and time savings. Metal parts made by DMLS technology are fully comparable with casted or machined parts. A range of application of DMLS technologies is very wide – from prototypes, through short-run production to final products. Advantages of DMLS technology are arising along with complexity of parts – more complex geometry of parts (in terms of shape and occurrence of the detail) make DMLS technology even more
economically effective.