Research of the influence of parameters of isothermal deformation and heat treatment on structure and mechanical properties punchings from alloy VT6ch

Nochovnaya N.A.
UDC
621.98.043
DOI
10.18577/2307-6046-2017-0-10-3-3
Article PDF (Russian) (791.04 KB)
How to cite
Nochovnaya N.A. Research of the influence of parameters of isothermal deformation and heat treatment on structure and mechanical properties punchings from alloy VT6ch // Proceedings of VIAM. 2017. No. 10. DOI: 10.18577/2307-6046-2017-0-10-3-3. URL: https://test.viam.ru/en/journal/2017/10/3
Keywords
isothermal punching, heat treatment, annealing, structure, titanium alloy, strength.
Abstract

Isothermal punching is the perspective cost-efficient form-building technological process for the titanium alloys, allowing to lower materials consumption and labor input of the manufacturing in comparison with the traditional multitransitional manufacturing techniques of details from forgins and plates. One of the problems of this work is research of the influence of modes of deformation and thermal processing on structure and mechanical properties of isothermal punching from alloy VT6ch. It has been shown that isothermal die forging on the final step of deformation leads to elongation increase up to 14%. Further heat treatment (recrystallization annealing) results in globular-lamellar structure formation which is most favorable in order to provide ultimate tensile strength values not less than 995 MPa.

Reference list
  1. Nochovnaya N.A., Antashev V.G., Shiryaev A.A., Alekseev E.B. Issledovanie vliyaniya rezhimov izotermicheskogo deformirovaniya i termicheskoj obrabotki na strukturu i mehanicheskie svojstva opytnogo zharoprochnogo Ti-splava [Research of influence of modes of isothermal deformation and thermal processing on structure and mechanical properties of pilot heat resisting Ti-alloy] // Tehnologiya legkih splavov. 2012. №4. S. 92–98.
  2. Nochovnaya N.A., Shiryaev A.A., Alekseev E.B., Antashev V.G. Optimizaciya rezhimov termicheskoj obrabotki dlya lopatochnyh zagotovok iz opytnogo zharoprochnogo titanovogo splava [Optimization of modes of thermal processing for scapular preparations from experimental heat resisting titanium alloy] // MiTOM. 2014. №12 (714). S. 22–26.
  3. Nochovnaya N.A., Alekseev E.B., Izotova A.Yu., Novak A.V. Pozharobezopasnye titanovye splavy i osobennosti ih primeneniya [Fireproof titanium alloys and features of their application] // Titan. 2012. №4 (38). S. 42–46.
  4. Tarasov Yu.M., Antipov V.V. Novye materialy VIAM – dlya perspektivnoj aviacionnoj tehkniki proizvodstva OAO «OAK» [The VIAM new materials – for perspective aviation engineering of production of JSC «OAK»] // Aviacionnye materialy i tehnologii. 2012. №2. S. 5–6.
  5. Kablov E.N. Materialy i himicheskie tehnologii dlya aviacionnoj tehniki [Materials and chemical technologies for aviation engineering] // Vestnik Rossijskoj Akademii Nauk. 2012. T. 82. №6. S. 520–530.
  6. Kablov E.N. Shestoj tehnologicheskij uklad [Sixth technological way] // Nauka i zhizn. 2010. №4. S. 2–7.
  7. Horev A.I., Belov S.P., Glazunov S.G. Metallovedenie titana i ego splavov [Metallurgical science of titanium and its alloys]. M.: Metallurgiya, 1992. 352 S.
  8. Nochovnaya N.A., Panin P.V., Kochetkov A.S., Bokov K.A. Sovremennye zharoprochnye splavy na osnove gamma-alyuminida titana: perspektivy razrabotki i primeneniya [Modern hot strength alloys on the basis of titanium gamma aluminide: development and application perspectives] // MiTOM. 2014. №7. S. 23–27.
  9. Nochovnaya N., Ivanov V., Alexeev E., Izotova A. Opportunities of increase of mechanical properties of the deformed semi-finished products from Ti–Al–Nb system alloys // Proc. 12th World Conf. on Titanium (Ti-2011). 2011. Vol. 2. P. 1383–1386.
  10. Nochovnaya N.A., Skvorcova S.V., Anishhuk D.S., Alekseev E.B., Panin P.V., Umarova O.Z. Otrabotka tehnologii opytnogo zharoprochnogo splava na osnove intermetallida Ti2AlNb [Working off of technology of pilot hot strength alloy on the basis of Ti2AlNb intermetallic compound] // Titan. 2013. №4. S. 24–29.
  11. Alekseev E.B., Nochovnaya N.A., Skvorcova S.V., Grushin I.A., Agarkova E.O. Vliyanie termicheskoj obrabotki na strukturno-fazovyj sostav i mehanicheskie svojstva titanovogo splava na osnove orto-fazy [Influence of thermal processing on structural and phase structure and mechanical properties of titanium alloy on the basis of orto-phase] // Titan. 2014. №4. S. 34–38.
  12. Alekseev E.B., Nochovnaya N.A., Ivanov V.I., Panin P.V., Novak A.V. Issledovanie vliyaniya alyuminiya na fazovyj sostav i svojstva deformirovannyh polufabrikatov iz intermetallidnogo titanovogo splava VTI-4 [Research of influence of aluminum on phase structure and properties of the deformed semi-finished products from intermetallic VTI-4 titanium alloy] // Tehnologiya legkih splavov. 2015. №1. S. 57–61.
  13. Alekseev E.B., Nochovnaya N.A., Panin P.V. Issledovanie struktury i fazovogo sostava opytnogo zharoprochnogo splava na osnove intermetallida Ti2AlNb v deformirovannom sostoyanii // Titan. 2014. №4. S. 12–17.
  14. Splav na osnove titana i izdelie, vypolnennoe iz nego: pat. 2210612 Ros. Federaciya [Сплав на основе титана и изделие, выполненное из него]; opubl. 20.08.03.
  15. Kablov E.N. Strategicheskie napravleniya razvitiya materialov i tehnologij ih pererabotki na period do 2030 goda [The strategic directions of development of materials and technologies of their processing for the period to 2030] // Aviacionnye materialy i tehnologii. 2012. №S. S. 7–17.
  16. Nochovnaya N.A., Alekseev E.B., Yasinskij K.K., Kochetkov A.S. Specifika plavki i sposoby polucheniya slitkov intermetallidnyh titanovyh splavov s povyshennym soderzhaniem niobiya // Vestnik MGTU im. N.E. Baumana. Ser.: Mashinostroenie. 2011. №SP2. C. 53–59.
  17. Kablov D.E., Panin P.V., Shiryaev A.A., Nochovnaya N.A. Opyt ispolzovaniya vakuumno-dugovoj pechi ALD VAR L200 dlya vyplavki slitkov zharoprochnyh splavov na osnove aljuminidov titana [The use of ADL VAR L200 vacuum-arc furnace for ingots fabrication of high-temperature titanium aluminides base alloys] //Aviacionnye materialy i tehnologii. 2014. №2. S. 27–33. DOI: 10.18577/2071-9140-2014-0-2-27-33.
  18. Alekseev E.B., Nochovnaya N.A., Skvorcova S.V., Panin P.V., Umarova O.Z. Opredelenie tehnologicheskih parametrov deformacii opytnogo zharoprochnogo splava na osnove intermetallida Ti2AlNb [Determination of technological parameters of deformation of pilot hot strength alloy on the basis of Ti2AlNb intermetallic compound] // Titan. 2014. №2. S. 36–41.
  19. Kazanceva N.V., Lepihin S.V. Issledovanie diagrammy sostoyaniya Ti–Al–Nb [Research of the chart of condition of Ti-Al-Nb] // Fizika metallov i metallovedenie. 2006. T. 102. №2. S. 184–195.
  20. Demakov S.L., Stepanov L.S., Popov A.A. Fazovye PREVRASHHENIYA V SUPER α2-titanovom splave. I. Vliyanie temperatury i vremeni vyderzhki pod zakalku na fazovyj sostav i strukturu splava // Fizika metallov i metallovedenie. 1998. T. 86. №5. S. 115–122.
  21. Kolachev B.A., Ilyin A.A., Volodin V.A., Ryndenkov D.V. About the purposefulness of comparison of titanium alloys in terms of aluminium and molybdenum equivalents // Proc. 9th World Conf. on Titanium (Titanium'99: Science and Technology). 1999. Vol. 1. P. 53–60.
  22. Kablov E.N. Innovacionnye razrabotki FGUP «VIAM» GNC RF po realizacii «Strategicheskih napravlenij razvitiya materialov i tehnologij ih pererabotki na period do 2030 goda» [Innovative developments of FSUE «VIAM» SSC of RF on realization of «Strategic directions of the development of materials and technologies of their processing for the period until 2030»] // Aviacionnye materialy i tehnologii. 2015. №1 (34). S. 3–33. DOI: 10.18577/2071-9140-2015-0-1-3-33.
  23. Horev A.I. Fundamentalnye i prikladnye raboty po konstrukcionnym titanovym splavam i perspektivnye napravleniya ih razvitiya [Fundamental and applied works on structural titanium alloys and perspective directions of their development] //Trudy VIAM: elektron. nauch.-tehnich. zhurn. 2013. №2. St. 04. Available at: http://www.viam-works.ru (accessed: July 07, 2017).
  24. Ilin A.A., Kolachev B.A., Polkin I.S. Titanovye splavy. Sostav. Struktura. Svojstva [Titanium alloys. Structure. Structure. Properties]. M.: VILS–MATI, 2009. 520 s.
  25. Material Needs and RandD strategy for Future Military Aerospace Propulsion Systems. USA.: National Research council, 2009. 737 p.
  26. Macdonald K. A. Fracture and fatigue of welded joints and structires. Woodhead Publishing Limited, 2011. 360 p.
  27. Lin J., Balint D., Pietzyk M. Microstructure evolution in metal forming process. Woodhead Publishing Limited, 2012. 416 p.