Akhonin S.V., Severin A.Yu., Berezos V.O., Pikulin O.M., Kryzhanovskyi V.A., Yerokhin O.G.Investigations Of The Quality Of Wrought Semi-finished Products From Vt9 Titanium Alloy Produced By Electron Beam Melting (The Paton Welding Journal, 2022, №03)