Investigation of the mechanical properties and structure of forgings made of VT6ch alloy after heat treatment with heating in the β-area

Krokhinа V.A., Arislanov A.A., Putyrskiy S.V.
Krokhinа V.A., Arislanov A.A., Putyrskiy S.V. Investigation of the mechanical properties and structure of forgings made of VT6ch alloy after heat treatment with heating in the β-area // Proceedings of VIAM. 2024. No. 7. DOI: 10.18577/2307-6046-2024-0-7-24-33. URL: https://test.viam.ru/en/journal/2024/7/3
Keywords
forgings of titanium alloy VT6ch, mechanical properties, fracture toughness, microstructure
Abstract

The article presents the results of a study of the mechanical properties and microstructure of forgings made of VT6ch alloy after heat treatment with heating in the β-area , depending on the cooling rate from the temperature of the β- area , the temperature of the second stage of heat treatment, as well as the geometric parameters of the forgings . The values of mechanical properties under tension, impact strength, fracture toughness, microstructure of forgings, as well as low-cycle fatigue and endurance limit in terms of comparing properties are given. A comparative analysis of the obtained test results was carried out.

Reference list
  1. Arislanov A.А., Putyrskiy S.B., Yakovlev A.L., Gribkov M.S. Analysis of microstructure and mechanical properties of welded joint from VT6ch. alloy. Aviacionnye materialy i tehnologii, 2019, no. 4 (57), pp. 74–79. DOI: 10.18577/2071-9140-2019-0-4-74-79.
  2. Yakovlev A.L., Arislanov A.A., Putyrsky S.V., Nochovnaya N.A. Study of mechanical properties and structure of large-sized semi-finished products made of VT6ch titanium alloy. Aviacionnye materialy i tehnologii, 2020, no. 4 (61), pp. 12–18. DOI: 10.18577/2071-9140-2020-0-4-12-18.
  3. Inagaki I., Shirai Y., Takechi T., Ariyasu N. Application and Features of Titanium for the Aerospace Industry. Osaka: Nippon Steel & Sumitomo Metal, 2014, pp. 22–27.
  4. Sieniawski J., Ziaja W., Kubiak K., Motyka M. Microstructure and mechanical properties of high strength two-phase titanium alloys. Titanium Alloys-Advances in Properties Control. London: InTech, 2013, pp. 69–80.
  5. Bratukhin A.G., Kolachev B.A., Sadkov V.V. et al. Technology for the production of titanium aircraft structures. Moscow: Mashinostroyenie, 1995, 448 p.
  6. Kablov E.N. Trends and guidelines for innovative development of Russia: collection of scientific information materials. 3rd ed., revised and additional. Moscow: VIAM, 2015, 720 p.
  7. Kablov E.N. What will the future be made of? New generation materials, technologies for their creation and processing are the basis of innovation. Krylya Rodiny, 2016, no. 5, pp. 8–18.
  8. Peters M., Kumpfert J., Ward C.H., Leyens C. Titanium Alloys for Aerospace Applications. Advanced Engineering Materials, 2003, no. 5, pp. 419–427. DOI: 10.1002/adem.2003-06-26.
  9. Kablov E.N., Kashapov O.S., Medvedev P.N., Pavlova T.V. Study of a α+β-titanium alloy based on a system of Ti–Al–Sn–Zr–Si–β-stabilizing alloying elements. Aviacionnye materialy i tehnologii, 2020, no. 1 (58), pp. 30–37. DOI: 10.18577/2071-9140-2020-0-1-30-37.
  10. Ilyin A.A., Kolachev B.A., Polkin I.S. Titanium alloys. Composition, structure, properties: reference book. Moscow: VILS–MATI, 2009, 520 p.
  11. Glazunov S.G., Yasinsky K.K. Titanium alloys for aviation equipment and other industries. Tekhnologiya legkikh splavov, 1993, no. 7–8, pp. 47–54.
  12. Horev A.I. Fundamental and applied works on structural titanium alloys and perspective directions of their development. Trudy VIAM, 2013, no. 2, paper no. 04. Available at: http://www.viam-works.ru (accessed: April 15, 2024).
  13. Glazunov S.G., Moiseev V.N. Structural titanium alloys. Moscow: Metallurgiya, 1974, 368 p.
  14. Anoshkin N.F., Bochvar G.A., Livanov V.A. Titanium alloys. Metallography of titanium alloys. Moscow: Metallurgiya, 1980, 464 p.
  15. Panin P.V., Nochovnaya N.A., Kablov D.E., Alekseev E.B., Shiryaev A.A., Novak A.V. Practical guide to metallography of alloys based on titanium and its intermetallic compounds: textbook. Ed. E.N. Kablov. Moscow: VIAM, 2020, 200 p.
  16. Kablov E.N., Putyrsky S.V., Yakovlev A.L., Krokhina V.A., Naprienko S.A. Study of resistance to fatigue fracture of forgings made of high-strength titanium alloy VT22M, manufactured with final deformation in the (α+β)- and β-regions. Titan, 2021, no. 1 (70), pp. 473–479. DOI: 10.1007/s11041-015-9907-1.
  17. Duyunova V.A., Pavlova T.V., Kashapov O.S., Chuchman O.V. Fatigue strength of forgings from VT6 alloy for parts of gas turbine engines and aircrafts. Aviation materials and technologies, 2023, no. 2 (71), paper no. 02. Available at: http://www.journal.viam.ru (accessed: March 13, 2024). DOI: 10.18577/2713-0193-2023-0-2-23-35.
  18. Nochovnaya N.A., Shiryaev A.A. Features of the structural and phase composition, mechanical properties of metastable β-titanium alloy VT47 alloyed with silicon. Aviation materials and technologies, 2023, no. 1 (70), paper no. 04. Available at: http://www.journal.viam.ru (accessed: March 14, 2024). DOI: 10.18577/2713-0193-2023-0-1-51-60.
  19. Mylnikov V.V., Kondrashkin O.B., Shetulov D.I. Cyclic strength and durability of structural materials. N. Novgorod: NNGASU, 2018, p. 177.
  20. Sauer C., Luetjering G. Thermo-mechanical processing of high strength-titanium alloys and effects on microstructure and properties. Journal of Materials Processing Technology, 2001, no. 117 (3), pp. 311–317. DOI: 10.1016/S0924-0136(01)00788-9.