JOM

, Volume 67, Issue 10, pp 2296–2302 | Cite as

Nanomechanical Behavior of CoCrFeMnNi High-Entropy Alloy

  • Sanghita Mridha
  • Santanu Das
  • Samir Aouadi
  • Sundeep Mukherjee
  • Rajiv S. Mishra
Article

Abstract

The nanomechanical behavior of the Co20Cr20Fe20Mn20Ni20 high-entropy alloy was investigated in as-cast, rolled, annealed, and thin-film forms. Dislocation nucleation was studied by repeated indents at a low load for each of the different processing conditions. Distinct displacement bursts (pop in) were observed in the loading curve marked by incipient plasticity for all the samples. The as-cast and annealed samples showed pop ins for 100% of the indents, whereas the rolled and thin-film samples showed a much lower fraction of displacement bursts. This was explained by the high density of dislocations for the cold-worked and thin-film conditions. The strong depth dependence of hardness was explained by geometrically necessary dislocations. The nanomechanical behavior and twinned microstructure indicate low stacking-fault energy for this high-entropy alloy.

References

  1. 1.
    M. Tsai and J. Yeh, Mater. Res. Lett. 2, 107 (2014).CrossRefGoogle Scholar
  2. 2.
    L.J. Santodonato, Y. Zhang, M. Feygenson, C.M. Parish, M.C. Gao, R.J. Weber, J.C. Neuefeind, Z. Tang, and P.K. Liaw, Nature Commun. 6, 1 (2015).CrossRefGoogle Scholar
  3. 3.
    M.C. Gao and D.E. Alman, Entropy 15, 4504 (2013).CrossRefGoogle Scholar
  4. 4.
    Y. Zhang, T.T. Zuo, Z. Tang, M.C. Gao, K.A. Dahmen, P.K. Liaw, and Z.P. Lu, Prog. Mater. Sci. 61, 1 (2014).CrossRefGoogle Scholar
  5. 5.
    C. Hsu, J. Yeh, S. Chen, and T. Shun, Metall. Mater. Trans. A 35, 1465 (2004).CrossRefGoogle Scholar
  6. 6.
    S. Ogata, Y. Umeno, and M. Kohyama, Modell. Simul. Mater. Sci. Eng. 17, 013001 (2009).CrossRefGoogle Scholar
  7. 7.
    S. Chen, W. Tang, Y. Kuo, S. Chen, C. Tsau, T. Shun, and J. Yeh, Mater. Sci. Eng. A 527, 5818 (2010).CrossRefGoogle Scholar
  8. 8.
    M. Chuang, M. Tsai, C. Tsai, N. Yang, S. Chang, J. Yeh, S. Chen, and S. Lin, J. Alloys Compd. 551, 12 (2013).CrossRefGoogle Scholar
  9. 9.
    M. Chuang, M. Tsai, W. Wang, S. Lin, and J. Yeh, Acta Mater. 59, 6308 (2011).CrossRefGoogle Scholar
  10. 10.
    C. Hsu, C. Juan, W. Wang, T. Sheu, J. Yeh, and S. Chen, Mater. Sci. Eng. A 528, 3581 (2011).CrossRefGoogle Scholar
  11. 11.
    P. Bhattacharjee, G. Sathiaraj, M. Zaid, J. Gatti, C. Lee, C. Tsai, and J. Yeh, J. Alloys Compd. 587, 544 (2014).CrossRefGoogle Scholar
  12. 12.
    M. Tsai, C. Wang, C. Tsai, W. Shen, J. Yeh, J. Gan, and W. Wu, J. Electrochem. Soc. 158, H1161 (2011).CrossRefGoogle Scholar
  13. 13.
    Y. Chen, T. Duval, U. Hong, J. Yeh, H. Shih, L. Wang, and J. Oung, Mater. Lett. 61, 2692 (2007).CrossRefGoogle Scholar
  14. 14.
    C. Lin and H. Tsai, Intermetallics 19, 288 (2011).CrossRefGoogle Scholar
  15. 15.
    O. Senkov, S. Senkova, D. Dimiduk, C. Woodward, and D. Miracle, J. Mater. Sci. 47, 6522 (2012).CrossRefGoogle Scholar
  16. 16.
    C. Tong, Y. Chen, J. Yeh, S. Lin, S. Chen, T. Shun, C. Tsau, and S. Chang, Metall. Mater. Trans. A 36, 881 (2005).CrossRefGoogle Scholar
  17. 17.
    M.A. Hemphill, T. Yuan, G. Wang, J. Yeh, C. Tsai, A. Chuang, and P. Liaw, Acta Mater. 60, 5723 (2012).CrossRefGoogle Scholar
  18. 18.
    Y. Ma, G. Peng, D. Wen, and T. Zhang, Mater. Sci. Eng. A 621, 111 (2015).CrossRefGoogle Scholar
  19. 19.
    F. Otto, A. Dlouhý, C. Somsen, H. Bei, G. Eggeler, and E.P. George, Acta Mater. 61, 5743 (2013).CrossRefGoogle Scholar
  20. 20.
    B. Cantor, I. Chang, P. Knight, and A. Vincent, Mater. Sci. Eng. A 375, 213 (2004).CrossRefGoogle Scholar
  21. 21.
    C. Zhu, Z. Lu, and T. Nieh, Acta Mater. 61, 2993 (2013).CrossRefGoogle Scholar
  22. 22.
    R. Saha and W.D. Nix, Acta Mater. 50, 23 (2002).CrossRefGoogle Scholar
  23. 23.
    J. Mason, A. Lund, and C. Schuh, Phys. Rev. B 73, 054102 (2006).CrossRefGoogle Scholar
  24. 24.
    H. Bei, Y. Gao, S. Shim, E.P. George, and G.M. Pharr, Phys. Rev. B 77, 060103 (2008).CrossRefGoogle Scholar
  25. 25.
    M.M. Biener, J. Biener, A.M. Hodge, and A.V. Hamza, Phys. Rev. B 76, 165422 (2007).CrossRefGoogle Scholar
  26. 26.
    W. Gerberich, J. Nelson, E. Lilleodden, P. Anderson, and J. Wyrobek, Acta Mater. 44, 3585 (1996).CrossRefGoogle Scholar
  27. 27.
    T.F. Page, W.C. Oliver, and C.J. McHargue, J. Mater. Res. 7, 450 (1992).CrossRefGoogle Scholar
  28. 28.
    Y. Shibutani, T. Tsuru, and A. Koyama, Acta Mater. 55, 1813 (2007).CrossRefGoogle Scholar
  29. 29.
    C. Schuh, J. Mason, and A. Lund, Nature Mater. 4, 617 (2005).CrossRefGoogle Scholar
  30. 30.
    S. Shim, H. Bei, E.P. George, and G.M. Pharr, Scripta Mater. 59, 1095 (2008).CrossRefGoogle Scholar
  31. 31.
    Y. Chiu and A. Ngan, Acta Mater. 50, 1599 (2002).CrossRefGoogle Scholar
  32. 32.
    C.L. Kelchner, S. Plimpton, and J. Hamilton, Phys. Rev. B 58, 11085 (1998).CrossRefGoogle Scholar
  33. 33.
    J. Kiely and J. Houston, Phys. Rev. B 57, 12588 (1998).CrossRefGoogle Scholar
  34. 34.
    D. Lorenz, A. Zeckzer, U. Hilpert, P. Grau, H. Johansen, and H. Leipner, Phys. Rev. B 67, 172101 (2003).CrossRefGoogle Scholar
  35. 35.
    W. Wang, C. Jiang, and K. Lu, Acta Mater. 51, 6169 (2003).CrossRefGoogle Scholar
  36. 36.
    L. Zuo, A. Ngan, and G. Zheng, Phys. Rev. Lett. 94, 095501 (2005).CrossRefGoogle Scholar
  37. 37.
    H. Hertz, Miscellaneous Papers (London: Macmillan, 1896).MATHGoogle Scholar
  38. 38.
    K.L. Johnson, Contact Mechanics (Cambridge: Cambridge University Press, 1987).Google Scholar
  39. 39.
    N. Stelmashenko, M. Walls, L. Brown, and Y.V. Milman, Acta Metall. Mater. 41, 2855 (1993).CrossRefGoogle Scholar
  40. 40.
    Y. Cao, S. Allameh, D. Nankivil, S. Sethiaraj, T. Otiti, and W. Soboyejo, Mater. Sci. Eng. A 427, 232 (2006).CrossRefGoogle Scholar
  41. 41.
    A.H. Almasri and G.Z. Voyiadjis, Acta Mech. 209, 1 (2010).MATHCrossRefGoogle Scholar
  42. 42.
    P. Sadrabadi, K. Durst, and M. Göken, Acta Mater. 57, 1281 (2009).CrossRefGoogle Scholar
  43. 43.
    W.D. Nix and H. Gao, J. Mech. Phys. Solids 46, 411 (1998).MATHCrossRefGoogle Scholar
  44. 44.
    Y.Y. Lim and M.M. Chaudhri, Philos. Mag. A 79, 2979 (1999).CrossRefGoogle Scholar
  45. 45.
    Y.V. Milman, A. Golubenko, and S. Dub, Acta Mater. 59, 7480 (2011).CrossRefGoogle Scholar
  46. 46.
    J. Nye, Acta Metall. 1, 153 (1953).CrossRefGoogle Scholar
  47. 47.
    M. Ashby, Philos. Mag. 21, 399 (1970).CrossRefGoogle Scholar
  48. 48.
    A. Arsenlis and D. Parks, Acta Mater. 47, 1597 (1999).CrossRefGoogle Scholar
  49. 49.
    H. Gao and Y. Huang, Scripta Mater. 48, 113 (2003).CrossRefGoogle Scholar
  50. 50.
    A. Elmustafa and D. Stone, Mater. Sci. Eng. A 358, 1 (2003).CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2015

Authors and Affiliations

  • Sanghita Mridha
    • 1
  • Santanu Das
    • 1
  • Samir Aouadi
    • 1
  • Sundeep Mukherjee
    • 1
  • Rajiv S. Mishra
    • 1
  1. 1.Department of Materials Science and EngineeringUniversity of North TexasDentonUSA

Personalised recommendations