Effect of Hydrogen Technology on the Structure and Properties of High-Temperature Titanium Alloy Vt25u in the Production of Parts

One of the most promising fields of application of hydrogen technology is the production and processing of semiproducts and parts from hard-to-deform high-temperature titanium alloys. These alloys exhibit well-manifested hydrogen plasticizing (HP) in hot deformation, which provides elevated mechanical and service properties of the parts after thermohydrogen treatment (THT). In the present work we studied the effect of reversible hydrogen alloying on the phase composition, structure, chemical composition, and adaptability to manufacture of alloy VT25U subjected to hot deformation and determined the mechanical and service properties of test blades fabricated from this alloy with the use of hydrogen technology.