Manufacture of hot-pressed and cold-deformed pipes of VT1-0 titanium alloy cast hollow billet, produced by electron beam melting method - O. E. Sobko-Nesteruk; N. G. Tretjak; N. V. Chajka; S. I. Gorgul; M. I. Medvedev; N. A. Bespalova (Electrometallurgy Today, 2013)