Determination of the main phase’s particles chemical composition in products from granulated nickel superalloy EP741NP

Zaysev D.V., Sbitneva S.V., Ber L.B., Zavodov A.V.
UDC
669.245
DOI
10.18577/2307-6046-2016-0-9-8-8
Article PDF (Russian) (1.29 MB)
How to cite
Zaysev D.V., Sbitneva S.V., Ber L.B., Zavodov A.V. Determination of the main phase’s particles chemical composition in products from granulated nickel superalloy EP741NP // Proceedings of VIAM. 2016. No. 9. DOI: 10.18577/2307-6046-2016-0-9-8-8. URL: https://test.viam.ru/en/journal/2016/9/8
Keywords
granulated nickel-base superalloy EP741NP, carbides, carboborides, chemical composition, crystal structure.
Abstract

The chemical composition of γ, γ` and carbide particles in disc blanks from granulated nickel superalloy EP741NP is defined. Investigation of the phase’s chemical composition is performed using X-ray spectral microanalysis having locality 1,5 nm in transmission electron microscope. The γ`-phases particles have an increased content of Ni, Al, Ti, Nb and a lower concentration of Cr, Co, Mo and W than the matrix γ-layer. Particles of carbides contain high boron concentration besides of high carbon content thus theу are the carboborides. It is shown that the carboborides can be divided into two types depending on stoichiometric composition. The larger 0,3–1 micron sized particles are Me(B, C) phase where Me is Ti, Nb, Hf. and the smaller 80–200 nm sized particles corresponds to Ме23(В, С)6 or Ме3(В, С)2, where Ме is Cr, Mo, W. The identification of Me(B, C) particles is carried out using diffraction methods. The work is executed within implementation of integrated scientific direction 2.

Reference list
  1. 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.
  2. Kablov E.N. Fiziko-himicheskie i tehnologicheskie osobennosti sozdaniya zharoprochnyh splavov, soderzhashhih renij [Physical and chemical and technological features of creation of the hot strength alloys, containing reniye] // Vestn. Mosk. Un-ta, Ser. 2: Himiya. 2005. T. 46. №3. S. 155–167.
  3. Kablov E.N., Petrushin N.V., Svetlov I.L., Demonis I.M. Nikelevye litejnye zharoprochnye splavy novogo pokoleniya [Nickel foundry heat resisting alloys of new generation] // Aviacionnye materialy i tehnologii. 2012. №S. C. 36–52.
  4. Lomberg B.S., Ovsepyan S.V., Bakradze M.M., Mazalov I.S. Vysokotemperaturnye zharo-prochnye nikelevye splavy dlya detalej gazoturbinnyh dvigatelej [High-temperature heat resisting nickel alloys for details of gas turbine engines] //Aviacionnye materialy i tehnologii. 2012. №S. S. 52–57.
  5. Kablov E.N., Ospennikova O.G., Lomberg B.S. Strategicheskie napravleniya razvitiya konstrukcionnyh materialov i tehnologij ih pererabotki dlya aviacionnyh dvigatelej [The strategic directions of development of constructional materials and technologies of their processing for aircraft engines] // Avtomaticheskaya svarka. 2013. №10. S. 23–32.
  6. Lomberg B.S., Bakradze M.M., Chabina E.B., Filonova E.V. Vzaimosvyaz struktury i svojstv vysokozharoprochnykh nikelevykh splavov dlya diskov gazoturbinnykh dvigatelej [Interrelation of structure and properties of high-heat resisting nickel alloys for disks of gas turbine engines] // Aviacionnye materialy i tekhnologii. 2011. №2. S. 25–30.
  7. Chabina E.B., Filonova E.V., Lomberg B.S., Morozova G.I. Evolyuciya struktury i fazovogo sostava deformiruemyh zharoprochnyh nikelevyh splavov dlya diskov GTD s uslozhneniem ih legirovaniya [Evolution of structure and phase composition of deformable heat resisting nickel alloys for disks GTD with complication of their alloying] // MiTOM. 2015. №3. S. 8–12.
  8. Garibov G.S., Gric N.M., Vostrikov A.V. i dr. Krupnogabaritnye diski iz granul novogo vysokozharoprochnogo splava VV750P dlya perspektivnyh GTD [Large-size disks from granules of new VV750P high-hot strength alloy for perspective GTD] // Tehnologiya legkih splavov. 2008. №1. S. 31–36.
  9. Supersplavy II: Zharoprochnye materialy dlya aerokosmicheskih i promyshlennyh energoustanovok / pod red. Ch.T. Simsa, N.S. Stoloffa, U.K. Hagelya [Superalloys of II: Heat resisting materials for space and industrial power installations / ed. by of Ch.T.Sims, N. S. Stoloff, U.K.Hagel]. M.: Metallurgiya, 1995. Kn. 1. 384 s.
  10. Gorelik S.S., Skakov Yu.A., Rastorguev L.N. Rentgenograficheskij i elektronno-opticheskij analiz. 4-e izd. [Radiographic and electron-optical analysis. 4th. ed.]. M.: MISiS, 2002. 360 s.
  11. Blavette D., Bostel A., Sarrau J.M. Atom-probe microanalysis of a nickel-based superalloy // Metallurg. Trans. 1985. Vol. 16A. No. 10. P. 1703–1711.
  12. Morozova G.I. Zakonomernost' formirovaniya himicheskogo sostava γ'/γ-matric mnogokomponentnyh nikelevyh splavov [Pattern of forming of chemical composition γ'/γ-матриц multicomponent nickel alloys] // Doklady Akademii nauk. 1991. T. 320. №6. S. 1413–1416.
  13. Sluiter M.H.F., Kawazoe Y. Site Preference of Ternary Additions in Ni3Al // Phys. Review B. 1995. Vol. 51. No. 7. P. 4062–4073.
  14. Gale W.F., Totemeier T.C. Smithells Metals References Book. 8th edition. N.Y., 2004. P. 13–25.
  15. Burachynsky V., Cahoon J.R. A theory for solute impurity diffusion, which considers engel-brewer valences, balancing the fermi energy levels of solvent and solute, and differences in zero point energy // Metall and Mater. Trans. A. 1997. Vol. 28. P. 563–582.
  16. Epishin A.I., Link T., Nolce G., Svetlov I.L. i dr. Diffuzionnye processy v mnogokomponentnoj sisteme nikelevyj zharoprochnyj splav-nikel [Diffusion processes in multi-component system nickel heat resisting alloy] // FMM. 2014. T. 115. №1. S. 23–31.
  17. Moniruzzaman Md., Fukaya H., Murata Y., Tanaka K., Irui H. Diffusion of Al and Al-Substituting Elements in Ni3Al at Elevated Temperatures // Mater. Trans. 2012. Vol. 53. No. 12. P. 2111–2118.
  18. Wu Q., Li S., Ma Y., Gong S. First principles calculations of alloying element diffusion coefficients in Ni using the five-frequency model // Chinese Phys. B. 2012. Vol. 21. No. 10. P. 109102 (1–7).