Structural characteristics of monocrystalline castings and mechanical properties of nickel-based superalloys with low renium content

Part 2
Petrushin N.V., Bityutskaya O.N., Visik E.M., Chabina E.B.
UDC
669.245
DOI
10.18577/2307-6046-2026-0-3-3-22
Article PDF (Russian) (1.29 MB)
How to cite
Petrushin N.V., Bityutskaya O.N., Visik E.M., Chabina E.B. Structural characteristics of monocrystalline castings and mechanical properties of nickel-based superalloys with low renium content. Part 2 // Proceedings of VIAM. 2026. No. 3. DOI: 10.18577/2307-6046-2026-0-3-3-22. URL: https://test.viam.ru/en/journal/2026/3/1
Keywords
nickel-based superalloys, single crystals, structural and phase characteristics, ultimate tensile strength, yield strength, ductility, long-term strength creep, phase stability, rhenium, ruthenium
Abstract

The paper presents the results of experimental studies on the structural-phase characteristics and mechanical properties of <001> single crystals of the new carbon-containing nickel-based superalloys VZhL22 with 2 wt.% Re and its modification with 2,5 wt.% Ru (alloy VZhL22 + Ru). It was found that the studied alloys in the heat-treated condition demonstrated high phase stability during long-term strength testing and an increased level of mechanical properties. 

Alloy VZhL22 (d = 8,59 g/cm³) — E = 125 GPa (20 °C), $\sigma_{0,2}^{20^\circ} = 855 \, \text{MPa}$, $\sigma_{B}^{20^\circ} = 1130 \, \text{MPa}$, $\delta = 17,5\% \, (20 \, ^\circ \text{C})$, $\sigma_{100}^{900^\circ} = 469 \, \text{MPa}$, $\sigma_{100}^{900^\circ} = 292 \, \text{MPa}$, $\sigma_{100}^{1000^\circ} = 234 \, \text{MPa}$, $\sigma_{1000}^{1000^\circ} = 149 \, \text{MPa}$, $\sigma_{100}^{1050^\circ} = 173 \, \text{MPa}$, $\sigma_{1000}^{1050^\circ} = 113 \, \text{MPa}$; 

alloy VZhL22 + Ru (d = 8,76 g/cm³) — E = 120 GPa (20 °C), $\sigma_{0,2}^{20^\circ} = 950 \, \text{MPa}$, $\sigma_{B}^{20^\circ} = 1335 \, \text{MPa}$, $\delta = 10,5\% \, (20 \, ^\circ \text{C})$, $\sigma_{100}^{900^\circ} = 544 \, \text{MPa}$, $\sigma_{100}^{1000^\circ} = 268 \, \text{MPa}$, $\sigma_{100}^{1050^\circ} = 195 \, \text{MPa}$.

Reference list
  1. Ospennikova O.G. Strategic directions for the creation of new heat-resistant materials and technologies for their production for aircraft engine building. Tsvetnaya metallurgiya, 2013, no. 1, pp. 31–34.
  2. Ospennikova O.G. Tendencies of development of heat-resistant nickel alloys of low density with polycrystalline and single-crystal structures (review). Aviacionnye materialy i tehnologii, 2016, no. 1 (40), pp. 3–19. DOI: 10.18577/2071-9140-2016-0-1-3-19.
  3. Nathal M.V. NASA and superalloys: a customer, a participant, and a referee. Superalloys 2008. Pennsylvania: Minerals, Metals & Materials Society, 2008, pp. 13–19.
  4. Low density, high creep resistant single crystal superalloys for turbine airfoils: pat. 7261783B1 US; appl. 22.09.04; publ. 28.08.07.
  5. Glezer G.M., Kachanov E.B., Kishkin S.T. et al. Modern cast heat-resistant alloys for gas turbine engine blades. Aviation materials at the turn of the 20th‒21st centuries. Moscow: VIAM, 1994, pp. 244–252.
  6. Aviation materials: a handbook in 13 vols. Ed. E.N. Kablov. 7th ed., rev. and add. Moscow: NRC «Kurchatov Institute» – VIAM, 2022. Vol. 3: Cast heat-resistant and intermetallic nickel-based alloys, 192 p.
  7. Whal J.B., Harris K. New single crystal superalloys, CMSX-7 and CMSX-8. Superalloys 2012. Pennsylvania: Minerals, Metals & Materials Society, 2012, pp. 179‒188.
  8. Nickel-Basislegierung für die gießtechnische Herstellung einkristalliner erstarter Bauteile: pat. 10100790A1 Deutsches; appl. 10.01.01; publ. 18.07.02.
  9. Second generation nickel base single crystal superalloy TMS-82+ (Developed under NIMS / Toshiba collaboration), 2004. Available at: http://sakimori.nims.go.jp (accessed: November 27, 2025).
  10. Li J.R., Zhong Z.G., Liu S.Z. et al. A low-cost second-generation single crystal superalloy DD6. Superalloys 2000. Pennsylvania: Minerals, Metals & Materials Society, 2000, pp. 777–783.
  11. Bürgel R., Grossmann J., Lüsebrink O. et al. Development of a new alloy for directional solidification of large industrial gas turbine blades. Superalloys 2004. Pennsylvania: Minerals, Metals & Materials Society, 2004, pp. 25‒34.
  12. Calculation of parameters of heat-resistant nickel alloys: Certificate of state registration of computer program No. RU 2019661855; appl. 28.08.19; publ. 10.09.19.
  13. Petrushin N.V., Rimsha E.G., Lutskaya S.A., Dmitriev N.S. Design of corrosion-resistant nickel-based superalloy VZHM9 for single crystal gas turbine blades. Trudy VIAM, 2023, no. 5 (123), pp. 3–20. Available at: http://www.viam-works.ru (accessed: November 27, 2025). DOI: 10.18577/2307-6046-2023-0-5-3-20.
  14. Samoilov A.I., Morozova G.I., Krivko A.I., Afonicheva O.S. Analytical method for optimization of alloying of heat-resistant nickel alloys. Materialovedenie, 2000, no. 2, pp. 14−17.
  15. Morinaga M., Yukawa N., Adachi H., Ezaki H. New phacomp and its applications to alloy design. Superalloys 1984. Pennsylvania: Minerals, Metals & Materials Society, 1984, pp. 523−532.
  16. Erickson G.L., Harris K. DS and SX superalloys for industrial gas turbines. Materials for advanced engineering. Proceedings of Conference: in 2 parts. Liege: Kluwer, 1994, part 2, pp. 1055–1074.
  17. Kablov E.N., Golubovsky E.R. Heat resistance of nickel alloys. Moscow: Mashinostroenie, 1998, 464 p.
  18. Cast heat-resistant nickel-based alloy and products made from it: pat. 2530932 С1 Rus. Federation; appl. 29.10.13; publ. 20.10.14.
  19. Lu F., Antonov S., Zheng Y. et al. Effect of Re on long-term creep behavior of nickel-based single-crystal superalloys for industrial gas turbine applications. Superalloys 2020. Pennsylvania: Minerals, Metals& Materials Society, 2020, pp. 218–227.
  20. Huang M., Cheng Z., Xiong J. et al. Coupling between Re segregation and γ/γ′ interfacial dislocations during high-temperature, low-stress creep of a nickel-based single-crystal superalloy. Acta Materialia, 2014, vol. 76, pp. 294‒305. DOI: 10.1016/j.actamat.2014.05.03
  21. Huang M., Zhu J. An overview of rhenium effect in single-crystal superalloys. Rare Metals, 2016, vol. 35, is. 2, pp. 127–139. DOI: 10.1007/s12598-015-0597-z.
  22. Lilensten L., Kürnsteiner P., Mianroodi J.R. et al. Segregation of solutes at dislocations: A new alloy design parameter for advanced superalloys. Superalloys 2020. Pennsylvania: Minerals, Metals & Materials Society, 2020, pp. 41–51. DOI: 10.1007/978-3-030-51834-9_4.
  23. Ding Q., Li S., Chen L.-Q. et al. Re segregation at interfacial dislocation network in nickel-base superalloys. Acta Materialia, 2018, vol. 154, pp. 137‒146. DOI: 10.1016/j.actamat.2018.05.025.
  24. Elyutin E.S. Development of heat-resistant nickel alloys of the 5th and 6th generations with increased long-term strength for single-crystal blades of promising aircraft gas turbine engines: thesis, Cand. Sc. (Tech.). Moscow, 2023, 200 p.
  25. Epishin A.I., Link T., Nolze G. et al. Diffusion processes in multicomponent nickel base superalloy–nickel system. The Physics of Metals and Metallography, 2014, vol. 115, no. 1, pp. 21–29. DOI: 10.1134/S0031918X14010050.
  26. Rae C.M.F., Karunaratne M.S.A., Small C.J. et al. Topologically close-packed phases in an experimental rhenium-containing single crystal superalloys. Superalloys 2000. Pennsylvania: Minerals, Metals & Materials Society, 2000, pp. 767−776.
  27. Cheng Y., Zhao X., Yue Q. et al. The nucleation of δ phases triggered by the stacking faults in a single crystal superalloy. Materials Research Letters, 2023, vol. 11, no. 11, pp. 957−963. DOI: 10.1080/201663831.2023.2272809.
  28. Pigrova G.D., Rybnikov A.I. Carbide phases in the alloy ZhS-32. Metallovedenie i termicheskaya obrabotka metallov, 2013, no. 12 (702), pp. 21−23.
  29. Petrushin N.V., Visik E.M., Gorbovets M.A., Nazarkin R.M. Structural-phase characteristics and mechanical properties of heat-resistant nickel-rhenium-containing alloys with intermetallic carbide strengthening. Metally, 2016, no. 4, pp. 57–70.
  30. Walston S., Cetel A., MacKay R. et al. Joint development of a fourth generation single crystal superalloy. Superalloys 2004. Pennsylvania: Minerals, Metals & Materials Society, 2004, pp. 15−24.
  31. Koizumi Y., Kobayashi T., Yokokawa T. et al. Development of next-generation Ni-base single crystal superalloys. Superalloys 2004. Pennsylvania: Minerals, Metals & Materials Society, 2004, pp. 35−43.
  32. Kablov E.N., Petrushin N.V., Svetlov I.L. Computer design of a heat-resistant nickel alloy of the 4th generation for single-crystal gas turbine blades. Casting heat-resistant alloys. Effect of S.T. Kishkin. Moscow: Science, 2006, pp. 98−115.
  33. Matuszewski K., Rettig R., Matysiak H. et al. Effect of ruthenium on the precipitation of topologically close packed phases in Ni-base superalloys of 3rd and 4th generation. Acta Materialia, 2015, vol. 95, pp. 274‒283. DOI: 10.1016/j.actamat.2015.05.033.
  34. Svetlov I.L., Petrushin N.V., Epishin A.I., Karashaew M.M., Elyutin E.S. Single crystals of nickel-based superalloys alloyed with rhenium and ruthenium (review). Part 2. Aviation materials and technologies, 2023, no. 2 (71), pp. 3–22. Available at: http://www.journal.viam.ru (accessed: October 30, 2025). DOI: 10.18577/2713-0193-2023-0-2-3-22.
  35. Song W., Wang X.G., Li J.G. et al. Effect of ruthenium on microstructure and high-temperature creep properties of fourth generation Ni-based single-crystal superalloys. Materials Science and Engineering A, 2020, vol. 772, pp. 138646. DOI: 10.1016/j.msea.2019.138646.
  36. Bandorf J., Kirzinger A., Zenk C.H. et al. On the evolution of the γ/γ′ lattice misfit and TCP phase precipitation in a highly alloyed single crystalline Ni-base superalloy. Superalloys 2024. Pennsylvania: Minerals, Metals & Materials Society, 2024, pp. 73–83. DOI: 10.1007/978-3-031-63937-1_7.
  37. Sidorov V.V., Kablov D.E., Rigin V.E. Metallurgy of cast heat-resistant alloys: technology and equipment. Moscow: VIAM, 2014, 368 p.
  38. Bityutskaya O.N., Petrushin N.V., Visik E.M., Kuzmina N.A., Lonskaya N.A. Structural characteristics of monocrystalline castings and mechanical properties of nickel-based superalloys with low renium content. Рart 1. Trudy VIAM, 2026, no. 1 (155), pp. 3–18. Available at: http://www.viam-works.ru (accessed: February 16, 2026). DOI: 10.18577/2307-6046-2026-0-1-3-18.
  39. Toloraya V.N., Ostroukhova G.A. Production of single-crystal castings with a given axial and azimuthal orientations. Trudy VIAM, 2022, no. 8 (114), pp. 3–13. Available at: http://www.viam-works.ru (accessed: April 23, 2025). DOI: 10.18577/2307-6046-2022-0-8-3-13.
  40. Gorelik S.S., Skakov Yu.A., Rastorguev L.N. X-ray and electron-optical analysis. Moscow: MISiS, 2002, 358 p.
  41. Shalin R.E., Svetlov I.L., Kachanov E.B. et al. Single crystals of nickel heat-resistant alloys. Moscow: Mashinostroenie, 1997, 336 p.
  42. Yukawa N., Morinaga M., Ezaki H., Murata Y. Alloy design of superalloys by the d-electrons concept. High Temperature Alloys for Gas Turbines and Other Applications: Proceedings of Conference held in Liege (Belgium, 6–9 October 1986). Dordrecht: C.R.M., 1986, pp. 935−944.
  43. Pyczak F., Devrient B., Mughrabi H. The effects of different alloying elements on the thermal expansion coefficients, lattice constants and misfit of nickel-based superalloys investigated by X-ray diffraction. Superalloys 2004. Pennsylvania: Minerals, Metals & Materials Society, 2004, pp. 827‒836.
  44. Reed R.C., Yeh A.C., Tin S. et al. Identification of the partitioning characteristics of ruthenium in single crystal superalloys using atom probe tomography. Scripta Materialia, 2004, vol. 51, pp. 27‒33. DOI: 10.1016/j.scriptamat.2004.04.019.
  45. Kovpak V.I. Prediction of heat resistance of metallic materials. Kyiv: Naukova Dumka, 1981. 240 p.
  46. Petrushin N.V., Visik E.M., Elyutin E.S. Improvement of the chemical composition and structure of castable nickel-base superalloy with low density. Part 2. Trudy VIAM, 2021, no. 4 (98), pp. 3–15. Available at: http://www.viam-works.ru (accessed: February 24, 2026). DOI: 10.18577/2307-6046-2021-0-4-3-15.
  47. Petrushin N.V., Elyutin E.S., Nazarkin R.M. et al. Segregation of alloying elements in directionally solidified heat-resistant nickel alloys containing rhenium and ruthenium. Voprosy materialovedeniya, 2015, no. 1 (81), pp. 27–37.
  48. Kablov E.N., Petrushin N.V., Parfenovich P.I. Design of cast heat-resistant nickel alloys with polycrystalline structure. Metallovedenie i termicheskaya obrabotka metallov, 2018, no. 2 (752), pp. 47–55.
  49. Nabarro F.R.N. Rafting in superalloys. Metallurgical and Materials Transactions A, 1996, vol. 27, no. 3, pp. 513‒530. DOI: 10.1007/BF02648942.
  50. Epishin A., Link T., Brückner U. Microstructural stability of CMSX-4 and CMSX-10 under high temperature creep conditions. Materials for Advanced Power Engineering. Jülich, FZ Jülich, 2006, pp. 507−520.