2016 №06 (10) DOI of Article
2016 №06 (12)

The Paton Welding Journal 2016 #06
TPWJ, 2016, #5-6, 63-67 pages

Electron beam welding of complex-alloyed high-strength titanium alloy

Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                      0957-798X (print)
Issue                       № 5-6, 2016 (May-June)
Pages                      63-67

S.V. Akhonin, S.G. Grigorenko, V.Yu. Belous, T.G. Taranova, R.V. Selin And E.L. Vrzhizhevsky
E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua

The paper deals with features of joint formation in complex high-strength (α + β)-titanium alloy in vacuum electron beam welding. Investigations were performed on samples of alloy of Ti–Al–Mo–V–Nb–Cr–Zr system produced by electron beam remelting. Influence of thermal cycle of welding and subsequent heat treatment on structural-phase transformations in the metal of weld and welded joint HAZ has been studied. A structure with prevalence of metastable ?-phase forms in the metal of weld and HAZ, which promotes lowering of ductility and impact toughness values. Postweld heat treatment is required to improve the structure and properties of EB-welded joints. The best combination of strength and ductility of studied welded joints was achieved after performance of furnace heat treatment (annealing at T = 900 °C for 1 h and cooling in the furnace), which promotes producing a practically uniform structure and metastable phase decomposition in the weld and HAZ. 8 Ref., 2 Tables, 8 Figures.

Keywords: EBW, titanium alloys, heat treatment, welded joint, structure, mechanical properties

Received:                26.04.16
Published:               19.07.16


  1. Khorev, A.I. (2007) Theory and practice of titanium alloys development for advanced structures. Tekhnologiya Mashinostroeniya, 12, 5–13.
  2. Kablov, E.N. (2012) Strategy of development of materials and technologies of their treatment for period up to 2030. Materialy i Tekhnologii, 5, 7–17.
  3. Grabin, V.F. (1982) Metals science of fusion welding. Kiev: Naukova Dumka.
  4. Shorshorov, M.Kh. (1965) Metals science of welding of titanium and titanium alloys. Moscow: Nauka.
  5. Gurevich, S.M., Zamkov, V.N., Blashchuk, V.E. et al. (1986) Metallurgy and technology of welding of titanium and its alloys. Kiev: Naukova Dumka.
  6. Khorev, M.A., Gusev, Yu.V., Gribova, N.K. (1983) Heat treatment of welded joints of titanium alloys OT4 and VT20. Svarka, 7, 19–23.
  7. (2007) Electron beam melting in foundry. Ed. by S.V. Ladokhin. Kiev: Stal.
  8. Nazarenko, O.K., Kajdalov, A.A., Kovbasenko, S.N. et. al. (1987) Electron beam welding. Ed. by B.E. Paton. Kiev: Naukova Dumka.