Skip to main content
SpringerLink
Log in

Hot deformation behavior of the high-entropy alloy CoCuFeMnNi

  • Invited Paper
  • Nanocrystalline High Entropy Materials: Processing Challenges and Properties
  • Published:
Journal of Materials Research Aims and scope Submit manuscript

Abstract

In the present study, hot deformation behavior of a FCC high-entropy alloy CoCuFeMnNi has been investigated to explore the stress—strain response for a wide range of temperatures and strain rates. The deformation response has been examined by plotting a processing map and examining the evolution of microstructure and texture in each of the temperature—strain rate domain. Hot compression tests were carried out in the temperature range 850–1050 °C at strain rates varying from 0.001 s−1 to 10 s−1. Stress—strain curves indicate characteristic softening behavior due to dynamic recrystallization (DRX). DRX has been observed along grain boundaries, shear bands, as well as in the interior of deformed grains. The size of dynamically recrystallized grains shows a strong dependence on deformation temperature and increases with temperature. A high degree of twin formation takes place in the DRX grains evolved inside the shear bands, and the extent of twinning decreases at high temperatures. The optimal processing window has been estimated based on strain rate sensitivity and has been validated with detailed analyses of microstructure and texture. The best region for thermo-mechanical processing has been identified as in the temperature range 850–950 °C at strain rate 10−1 s−1.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9

Similar content being viewed by others

References

  1. D.B. Miracle, J.D. Miller, O.N. Senkov, C. Woodward, M.D. Uchic, and J. Tiley: Exploration and development of high entropy alloys for structural applications. Entropy 16, 494 (2014).

    Article  CAS  Google Scholar 

  2. Y. Deng, C.C. Tasan, K.G. Pradeep, H. Springer, A. Kostka, and D. Raabe: Design of a twinning-induced plasticity high entropy alloy. Acta Mater. 94, 124 (2015).

    Article  CAS  Google Scholar 

  3. B. Schuh, F. Mendez-Martin, B. Völker, E.P. George, H. Clemens, R. Pippan, and A. Hohenwarter: Mechanical properties, microstructure and thermal stability of a nanocrystalline CoCrFeMnNi high-entropy alloy after severe plastic deformation. Acta Mater. 96, 258 (2015).

    Article  CAS  Google Scholar 

  4. G. Laplanche, A. Kostka, O.M. Horst, G. Eggeler, and E.P. George: Microstructure evolution and critical stress for twinning in the CrMnFeCoNi high-entropy alloy. Acta Mater. 118, 152 (2016).

    Article  CAS  Google Scholar 

  5. Y. Zhang, T.T. Zuo, Z. Tang, M.C. Gao, K.A. Dahmen, P.K. Liaw, and Z.P. Lu: Microstructures and properties of high-entropy alloys. Prog. Mater. Sci. 61, 1 (2014).

    Article  Google Scholar 

  6. R. Raghavan, K.C. Hari Kumar, and B.S. Murty: Analysis of phase formation in multi-component alloys. J. Alloys Compd. 544, 152 (2012).

    Article  CAS  Google Scholar 

  7. B. Ren, Z.X. Liu, D.M. Li, L. Shi, B. Cai, and M.X. Wang: Effect of elemental interaction on microstructure of CuCrFeNiMn high entropy alloy system. J. Alloys Compd. 493, 148 (2010).

    Article  CAS  Google Scholar 

  8. S. Guo, C. Ng, J. Lu, and C.T. Liu: Effect of valence electron concentration on stability of fcc or bcc phase in high entropy alloys. J. Appl. Phys. 109, 103505 (2011).

    Article  Google Scholar 

  9. B. Cantor, I.T.H. Chang, P. Knight, and A.J.B. Vincent: Microstructural development in equiatomic multicomponent alloys. Mater. Sci. Eng., A 375–377, 213 (2004).

    Article  Google Scholar 

  10. L.H. Wen, H.C. Kou, J.S. Li, H. Chang, X.Y. Xue, and L. Zhou: Effect of aging temperature on microstructure and properties of AlCoCrCuFeNi high-entropy alloy. Intermetallics 17, 266 (2009).

    Article  CAS  Google Scholar 

  11. Y.Y. Chen, T. Duval, U.T. Hong, J.W. Yeh, H.C. Shih, L.H. Wang, and J.C. Oung: Corrosion properties of a novel bulk Cu0.5NiAlCoCrFeSi glassy alloy in 288 °C high-purity water. Mater. Lett. 61, 2692 (2007).

    Article  CAS  Google Scholar 

  12. C.Y. Hsu, T.S. Sheu, J.W. Yeh, and S.K. Chen: Effect of iron content on wear behavior of AlCoCrFexMo0.5Ni high-entropy alloys. Wear 268, 653 (2010).

    Article  CAS  Google Scholar 

  13. G.D. Sathiaraj, P.P. Bhattacharjee, C. Tsai, and J. Yeh: Effect of heavy cryo-rolling on the evolution of microstructure and texture during annealing of equiatomic CoCrFeMnNi high entropy alloy. Intermetallics 69, 1 (2016).

    Article  CAS  Google Scholar 

  14. F. Otto, Y. Yang, H. Bei, and E.P. George: Relative effects of enthalpy and entropy on the phase stability of equiatomic high-entropy alloys. Acta Mater. 61, 2628 (2013).

    Article  CAS  Google Scholar 

  15. Y.F. Ye, Q. Wang, J. Lu, C.T. Liu, and Y. Yang: The generalized thermodynamic rule for phase selection in multicomponent alloys. Intermetallics 59, 75 (2015).

    Article  CAS  Google Scholar 

  16. Y. Zhang, T.T. Zuo, Z. Tang, M.C. Gao, K.A. Dahmen, P.K. Liaw, and Z.P. Lu: Microstructures and properties of high-entropy alloys. Prog. Mater. Sci. 61, 1–93 (2014).

    Article  Google Scholar 

  17. K.Y. Tsai, M.H. Tsai, and J.W. Yeh: Sluggish diffusion in Co—Cr—Fe—Mn—Ni high-entropy alloys. Acta Mater. 61, 4887 (2013).

    Article  CAS  Google Scholar 

  18. Z. Wang, W. Qiu, Y. Yang, and C.T. Liu: Atomic-size and lattice-distortion effects in newly developed high-entropy alloys with multiple principal elements. Intermetallics 64, 63 (2015).

    Article  CAS  Google Scholar 

  19. N.P. Gurao and Biswas Krishanu, In the quest of single phase multi-component multiprincipal high entropy alloys. J. Alloys Compd. 697, 434 (2017).

    Article  Google Scholar 

  20. R. Sonkusare, P. Divya Janani, N.P. Gurao, S. Sarkar, S. Sen, K.G. Pradeep, and K. Biswas: Phase equilibria in equiatomic CoCuFeMnNi high entropy alloy. Mater. Chem. Phys. (2017).

  21. Biswas Krishanu and N. P. Gurao: Deciphering micro-mechanisms of plastic deformation in a novel single phase Fcc-based MnFeCoNiCu high entropy alloy using crystallographic texture. Mater. Sci. Eng. 657, 224 (2016).

    Article  Google Scholar 

  22. S.M. Oh and S.I. Hong: Microstructural evolution and mechanical properties in a Mn1.05Fe1.05CoNiCu0.9 high entropy alloy. Key Eng. Mater. 737, 44 (2017).

    Article  Google Scholar 

  23. Y.V.R.K. Prasad: Processing maps: A status report. J. Mater. Eng. Perform. 12, 638 (2003).

    Article  CAS  Google Scholar 

  24. P. Zhang, C. Hu, C.G. Ding, Q. Zhu, and H.Y. Qin: Plastic deformation behavior and processing maps of a Ni-based superalloy. Mater. Des. 65, 575 (2015).

    Article  CAS  Google Scholar 

  25. R.S. Kottada: Hot deformation behaviour and processing map of Co—Cu—Fe—Ni—Ti eutectic high entropy alloy. Mater. Sci. Eng., A 664, 227 (2016).

    Article  Google Scholar 

  26. A. Chaudhuri, A. Sarkar, R. Kapoor, R.N. Singh, J.K. Chakravartty, and S. Suwas: Microstructural features of hot deformed Nb–1Zr–0.1C alloy. JOM 66, 1923 (2014).

    Article  CAS  Google Scholar 

  27. A. Chaudhuri, A. Sarkar, and S. Suwas: Investigation of stress—strain response, microstructure and texture of hot deformed pure molybdenum. Int. J. Refract. Met. Hard Mater. 73, 168 (2018).

    Article  CAS  Google Scholar 

  28. S. Roy and S. Suwas: The influence of temperature and strain rate on the deformation response and microstructural evolution during hot compression of a titanium alloy Ti–6Al–4V–0.1B. J. Alloys Compd. 548, 110 (2013).

    Article  CAS  Google Scholar 

  29. R.R. Eleti, T. Bhattacharjee, L. Zhao, P.P. Bhattacharjee, and N. Tsuji: Hot deformation behavior of CoCrFeMnNi FCC high entropy alloy. Mater. Chem. Phys. 210, 176 (2018).

    Article  CAS  Google Scholar 

  30. J.Y. He, C. Zhu, D.Q. Zhou, W.H. Liu, T.G. Nieh, and Z.P. Lu: Steady state flow of the FeCoNiCrMn high entropy alloy at elevated temperatures. Intermetallics 55, 9 (2014).

    Article  CAS  Google Scholar 

  31. N.D. Stepanov, D.G. Shaysultanov, N.Y. Yurchenko, S.V. Zherebtsov, A.N. Ladygin, G.A. Salishchev, and M.A. Tikhonovsky: High temperature deformation behavior and dynamic recrystallization in CoCrFeNiMn high entropy alloy. Mater. Sci. Eng., A 636, 188 (2015).

    Article  CAS  Google Scholar 

  32. K. Huang and R.E. Logé: A review of dynamic recrystallization phenomena in metallic materials. Mater. Des. 111, 548 (2016).

    Article  CAS  Google Scholar 

  33. W. Gao, A. Belyakov, H. Miura, and T. Sakai: Dynamic recrystallization of copper polycrystals with different purities. Mater. Sci. Eng., A 265, 233 (1999).

    Article  Google Scholar 

  34. M. Jafari, A. Najafizadeh, and J. Rasti: Dynamic recrystallization by necklace mechanism during hot deformation of 316 stainless steel. Int. J. ISSI 4, 16 (2008).

    Google Scholar 

  35. T. Sakai, A. Belyakov, R. Kaibyshev, H. Miura, and J.J. Jonas: Dynamic and post-dynamic recrystallization under hot, cold and severe plastic deformation conditions. Prog. Mater. Sci. 60, 130 (2014).

    Article  CAS  Google Scholar 

  36. Suwas Satyam, and Nilesh P. Gurao, Crystallographic texture in Materials, J. Indian Inst. Sci. 88.2, 151 (2008).

    Google Scholar 

  37. S. Guha, S. Sangal, and S. Basu: A review of higher order strain gradient theories of plasticity: Origins, thermodynamics and connections with dislocation mechanics. Sadhana Acad. Proc. Eng. Sci. 40, 1205 (2015).

    Google Scholar 

  38. T. Abe and Y. Ono: Numerical study of grain rotation in polycrystalline metal during plastic deformation. Met. Mater. 4, 376 (1998).

    CAS  Google Scholar 

  39. E. Ghassemali, R. Sonkusare, K. Biswas, and N.P. Gurao: In situ study of crack initiation and propagation in a dual phase AlCoCrFeNi high entropy alloy. J. Alloys Compd. 710, 539–546 (2017).

    Article  CAS  Google Scholar 

Download references

Acknowledgment

This work was carried out as a part of project funded by Indo-Australian grant (AISRF), Grant No. DST/INT/AUS/P-72/2017. The authors acknowledge Advanced Facility for Microscopy and Microanalysis at the Indian Institute of Science, Bangalore, India, for providing the required research facilities and are also thankful to Mr. S. Sashidhara and Mr. Kantaraj for their assistance in conducting the deformation experiments.

Author information

Authors and Affiliations

  1. Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India

    Natasha Prasad, Nitish Bibhanshu, Ganesh S. Avadhani & Satyam Suwas

  2. Materials and Mechanical Entity, Vikram Sarabhai Space Centre, Thiruvananthpuram, 695022, India

    Niraj Nayan

Authors
  1. Natasha Prasad
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Nitish Bibhanshu
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Niraj Nayan
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Ganesh S. Avadhani
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Satyam Suwas
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Niraj Nayan.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Prasad, N., Bibhanshu, N., Nayan, N. et al. Hot deformation behavior of the high-entropy alloy CoCuFeMnNi. Journal of Materials Research 34, 744–755 (2019). https://doi.org/10.1557/jmr.2018.500

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/jmr.2018.500

Search

Navigation