Study of the structure and phase composition of an entropy alloy based on the Ni–Cr–Co alloying system after vacuum induction melting

Vlasov I.I., Sevalnev G.S., Klimov V.S., Rogalev A.M.
UDC
669.017.13
DOI
10.18577/2307-6046-2024-0-9-3-14
Article PDF (Russian) (1.39 MB)
How to cite
Vlasov I.I., Sevalnev G.S., Klimov V.S., Rogalev A.M. Study of the structure and phase composition of an entropy alloy based on the Ni–Cr–Co alloying system after vacuum induction melting // Proceedings of VIAM. 2024. No. 9. DOI: 10.18577/2307-6046-2024-0-9-3-14. URL: https://test.viam.ru/en/journal/2024/9/1
Keywords
entropy alloys, alloying, structure, phase composition, hardness, equimolar
Abstract

The work carried out studies of the microstructure and phase composition of an entropy alloy based on the Ni–Cr–Co alloying system with different ratios of base and alloying elements after vacuum induction melting and subsequent casting into a crucible at a temperature of 200 °C. It has been established that with an equimolar ratio of elements, a solid solution with a higher entropy of mixing is formed, and the introduction of additional alloying elements leads to the formation of carbides and intermetallic compounds.

Reference list
  1. Sevalnev G.S., Korobova E.N., Dvoreckov R.M., Doroshenko A.V., Muzafarova S.-V.R., Samoilova I.I. Influence of the degree of martensitic structure dispersion and size of carbide phase on the frictional interaction under conditions of dry sliding friction of high-carbon complex alloy steel. Trudy VIAM, 2022, no. 6 (112), paper no. 03. Available at: http://www.viam-works.ru (accessed: December 15, 2023). DOI: 10.18577/2307-6046-2022-0-6-15-26.
  2. Sevalnev G.S. Beryllium-containing steels – perspective material with a high level of physical and mechanical properties. Aviation materials and technologies, 2023, no. 3 (72), paper no. 02. Available at: http://www.journal.viam.ru (accessed: December 15, 2023). DOI: 10.18577/2713-0193-2023-0-3-15-29.
  3. Cantor B., Chang I.T.H., Knight P., Vincent A.J.B. Microstructural development in equiatomic multicomponent alloys. Materials Science and Engineering: A, 2004, vol. 375–377, рр. 213–218. DOI: 10.1016/j.msea.2003.10.257.
  4. Cantor B. Multicomponent and high entropy alloys. Entropy. 2014, vol. 16, no. 9, рр. 4749–4768.
  5. Yeh J.-W., Chen S.-K., Lin S.-J. et al. Nanostructured highentropy alloys with multiple principal elements: novel alloy design concepts and outcomes. Advanced Engineering Materials, 2004, vol. 6, pp. 299–303. DOI: 10.1002/adem.200300567.
  6. Yeh J.-W. Recent progress in high-entropy alloys. Annales de Chimie-Science des Materiaux, 2006, vol. 31, pp. 633–648. DOI: 10.3166/acsm.31.633-648.
  7. Yeh J.-W., Chen Y.-L., Lin S.-J., Chen S.-K. High-entropy alloys – a new era of exploitation. Materials Science Forum, 2007, vol. 560, pp. 1–9. DOI: 10.4028/www.scientifi c.net/MSF.560.1.
  8. Yeh J.-W., Chen S.-K., Gan J.-Y. et al. Formation of simple crystal structures in Cu‒Co‒Ni‒Cr‒Al‒Fe‒Ti‒V alloys with multiprincipal metallic elements. Metallurgical and Materials Transactions: A, 2004, vol. 35, pp. 2533–2536. DOI: 10.1007/s11661-006-0234-4.
  9. Miracle D.B., Senkov O.N. A critical review of high entropy alloys and related concepts. Acta Materialia, 2017, vol. 122, pp. 448–511. DOI: 10.1016/j.actamat.2016.08.081.
  10. George E.P., Raabe D., Ritchie R.O. High-entropy alloys. Nature Reviews Materials, 2019, vol. 4, pp. 515–534. DOI: 10.1038/s41578-019-0121-4.
  11. Senkov O.N., Wilks G.B., Scott J.M., Miracle D.B. Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys. Intermetallics, 2011, vol. 11, pp. 698–706. DOI: 10.1016/j.intermet.2011.01.004.
  12. Zhang Y., Zhou Y.J., Lin J.P. et al. Solid-solution phase formation rules for multi-component alloys. Advanced Engineering Materials, 2018, vol. 10 (6), pp. 534–538. DOI: 10.1002/adem.200700240.
  13. Trofimenko N.N., Efimochkin I.Yu., Bolshakova A.N. Problems of creation and prospects for the use of heat-resistant high-entropy alloys. Aviacionnye materialy i tehnologii, 2018, no. 2 (51), pp. 3–8. DOI: 10.18577/2071-9140-2018-0-2-3-8.
  14. Trofimenko N.N., Efimochkin I.Yu., Osin I.V., Dvoretskov R.M. The research of the possibility of high entropy alloy VNbMoTaW production by mixing elementary powders with further hybrid spark plasma sintering. Aviacionnye materialy i tehnologii, 2019, no. 2 (55), pp. 12–20. DOI: 10.18577/2071-9140-2019-0-2-12-20.
  15. Kaplanskii Yu.Yu., Mazalov P.B. World trends in the development of refractory high-entropy alloys for heat-loaded units of aerospace technics (review). Aviation materials and technologies, 2022, no. 2 (67), paper no. 03. Available at: http://www.journal.viam.ru (accessed: December 12, 2023). DOI: 10.18577/2713-0193-2022-0-2-30-42.
  16. Kablov E.N., Sidorov V.V., Min P.G., Vadeev V.E., Kramer V.V. Research and development of technological parameters for vacuum melting of corrosion-resistant heat-resistant nickel alloys. Metallurg, 2021, no. 2, pp. 62–67.
  17. Murty B.S., Yeh J.W., Ranganathan S., Bhattacharje P.P. High-entropy alloys. Amsterdam: Elsevier, 2019, 374 p.
  18. Tsai M.-H., Yeh J.-W. High-entropy alloys: a critical review. Materials Research Letters, 2014, vol. 2 (3), pp. 107–123. DOI: 10.1080/21663831.2014.912690.
  19. Singh S., Wanderka N., Glatzel U., Banhart J. Decomposition in multi-component AlCoCrCuFeNi highentropy alloy. Acta Materialia, 2011, vol. 59, pp. 182–190. DOI: 10.1016/j.actamat.2010.09.023.
  20. The Materials Project. Available at: materialsproject.org (accessed: December 10, 2023).