Skip to main content

Advertisement

Log in

Neutron Diffraction Study of Strain/Stress States and Subgrain Defects in a Creep-Deformed, Single-Crystal Superalloy

  • Symposium: Neutron and X-Ray Studies of Advanced Materials VI: Diffraction Centennial and Beyond
  • Published:
Metallurgical and Materials Transactions A Aims and scope Submit manuscript

Abstract

A single crystal superalloy with initial sample axis 10 deg deviated from [001] was creep deformed at 1273 K (1000 °C) 235 MPa and its triaxial strain/stress state and subgrain defects were studied by neutron diffraction. Normal internal stresses with their directions close to the loading axis and their scales smaller than those perpendicular to the axis were observed and attributed to a lattice rotation toward [001] pole. The internal stress at a level approaching to the loading stress and mostly in the state of interphase stress was induced during the first stage of creep prior to rafting and associated to lattice rotation, microstrain relaxation and line-up of misoriented γ′-precipitates. The internal stress was diminished and released at final stage of creep associated with a reduction in unit-cell volume and a transition of strain/stress state between the two phases. The observation was explained by development of dislocations and raft structure during creep.

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

Access this article

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

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. F.R.N. Nabarro: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 513-30.

    Article  Google Scholar 

  2. M. Kamaraj: Sadhana Acad. Proc. Eng. Sci., 2003, vol. 28, pp. 115–28.

  3. L. Shui, S.G. Tian, T. Jin, and Z.Q. Hu: Mater. Sci. Eng., 2006, vol. A418, pp. 229-35.

    Article  Google Scholar 

  4. H. Biermann, M. Strehler, and H. Mughrabi: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 1003-1014.

    Article  Google Scholar 

  5. A. Jacques, F. Diologent, and P. Bastie: Mater. Sci. Eng., 2004, vol. A387-389, pp. 944-49.

    Article  Google Scholar 

  6. T. Link, A. Epishin, U. Bruckner, and P. Portella: Acta Mater., 2000, vol. 48, pp. 1981-94.

    Article  Google Scholar 

  7. S. Ma, D. Brown, M. A. M. Bourke, M.R. Daymond, and B.S. Majurndar: Mater. Sci. Eng., 2005, vol. A399, pp. 141-53.

    Article  Google Scholar 

  8. N. Matan, D.C. Cox, P. Carter, M.A. Rist, C.M.F. Rae, and R.C. Reed: Acta Mater., 1999, vol. 47, pp. 1549-63.

    Article  Google Scholar 

  9. L. Muller, T. Link, and M. Feller-Kniepmeier: Scripta Metall., 1992, vol. 26, pp. 1297-302.

    Article  Google Scholar 

  10. F. Pyczak, S. Neumeier, and M. Goken: Mater. Sci. Eng., 2009, Vol. A510-511, pp. 295-300.

    Article  Google Scholar 

  11. U. Glatzel, and M. Feller-Kniepmeier: Scripta Metall., 1989, Vol. 23, pp. 1839-41.

    Article  Google Scholar 

  12. L. Muller, U. Glatzel, and M. Feller-Kniepmeier: Acta Metal. Mater., 1993, vol. 41, pp. 3401-411.

    Article  Google Scholar 

  13. A.I. Epishin, T. Link, U. Bruckner, and B. Fedelich: Phys. Met. Metall., 2005, Vol. 100, pp. 192-99.

    Google Scholar 

  14. B. Marty, P. Moretto, P. Gergaud, J.L. Lebrun, K. Ostolaza, and V. Ji: Acta Mater., 1997, vol. 45, pp. 791-800.

    Article  Google Scholar 

  15. M. Hecker, E. Thiele, and C. Holste: Acta Mater., 2002 vol. 50, pp. 2357-65.

    Article  Google Scholar 

  16. H.A. Kuhn, H. Biermann, T. Ungar, and H. Mughrabi: Acta Metall. Mater., 1991, Vol. 39, pp. 2783-94.

    Article  Google Scholar 

  17. K. Tanaka, T. Kajikawa, T. Ichitsubo, M. Osawa, T. Yokokawa, and H. Harada: Mater. Sci. Forum, 2005, Vol. 475-479, pp. 619-22.

    Article  Google Scholar 

  18. Y. Lu, S. Ma, and B.S. Majumdar: Superalloy 2008, R.C. Reed, K.A. Green, P. Caron, T.P. Gabb, M.G. Fahrmann, E.S. Huron, and S.A. Woodard, eds., TMS, Warrendale, PA, 2008, p. 553.

  19. E. Wu, J. Zhang, B. Chen, G.A. Sun, V. Ji, D. Hughes, and T. Pirling: J. Phys. Condens. Matter, 2008, vol. 20, p. 104255.

  20. E. Wu, J.C. Li, J. Zhang, S.C. Wang, G. Xie, J. Zhang, B. Chen, G.A. Sun, V. Ji, and D. Hughes, T. Pirling: Metall. Mater. Trans. A, 2008, Vol. 39A, pp. 3141-48.

    Article  Google Scholar 

  21. G.A. Sun, B. Chen, E. Wu, J.C. Li, T. Pirling, and D. Hughes: Chin. Phys. Lett., 2009, Vol. 26, p. 086201.

    Article  Google Scholar 

  22. R.C. Reed: Superalloys: Fundamentals and Applications, Cambridge: Cambridge University Press, 2006, p. 139.

    Book  Google Scholar 

  23. S.H. Zhang, J. Zhang, and L.H. Lou: J. Mater. Sci. Technol., 2011, Vol. 27, pp. 107-112.

    Article  Google Scholar 

  24. C. Lang, W. Schneider, and H. Mughrabi: Acta Metall. Mater., 1995, vol. 43, 1751-64.

    Article  Google Scholar 

  25. A.I. Epishin, U. Bruckner, T. Link, and P.D. Portella: Mater. Sci. Forum, 2002, Vol. 404-407, pp. 287-92.

    Article  Google Scholar 

  26. A. Royer, A. Jacques, P. Bastie, and M. Veron: Mater. Sci. Eng., 2001, vol. A319-321, pp. 800-04.

    Article  Google Scholar 

  27. S. Ma, V. Seetharaman, and B.S. Majumdar, Acta Mater., 2008, vol. 56, pp. 4102-113.

    Article  Google Scholar 

  28. M.T. Hutchings, P.J. Withers, T.M. Holden, and T. Lorentzen: Introduction to the Characterization of Residual Stress by Neutron Diffraction, Boca Raton: CRC Press, 2005, p.155.

    Google Scholar 

  29. U. Cihak, P. Staron, H. Clemens, J. Homeyer, M. Stockinger, and J. Tockner: Mater. Sci. Eng. A, 2006, vol. 437, pp. 75-82.

    Article  Google Scholar 

  30. R. Watanabe, and T. Kuno: Trans. ISIJ, 1976, vol. 16, pp. 437-46.

    Google Scholar 

  31. H. Mughrabi: Acta Metall., 1983, vol. 31, pp. 1367-79.

    Article  Google Scholar 

  32. J. F. Ganghoffer, A. Hazotte, S. Denis, and A. Simon: Scripta Metall. Mater., 1991, vol. 25, pp. 2491-96.

    Article  Google Scholar 

  33. J. Zhang, S.C. Wang, E. Wu, J. Zhang, L.H. Lou: Acta Metall. Sinica, 2007, vol. 43, pp. 1161-65.

    Google Scholar 

  34. P. Beardmore, R.G. Davies, and T.L. Johnston: Trans. Metall. Soc. AIME, 1969, vol. 245, pp. 1537-46.

    Google Scholar 

  35. J.R. Li, K.G. Wang, Y.S. Luo, S.Z. Liu, M. Han, and C.X. Cao: Mater. Sci. Forum, 2007, vol. 539-543, pp. 3118-23.

    Article  Google Scholar 

  36. T.K. Liu, G.L. Wu, C.K. Liu, Z.H. Nie, T. Ungar, Y. Ren, and Y.D. Wang: Mater. Sci. Eng. A, 2013, vol. 568, pp. 83–87.

    Article  Google Scholar 

  37. N. Matan, D.C. Cox, C.M.F Rae, and R.C. Reed: Acta Mater., 1999, Vol. 47, pp. 2031−45.

  38. T.M. Pollock, and A.S. Argon: Acta Metall. Mater., 1992, vol. 40, pp. 1-30.

    Article  Google Scholar 

Download references

Acknowledgments

Authors thank Dr Chengbao Liu of IMR for his valuable assistance in superalloy sample preparation, and acknowledge the facilities and beam time provided by LLB, France. The work was financially supported by grants from NNSFC (No. 51071157, 11105128), program 863 (No. 2009AA03Z535), and STF of CAEP (No. 2010A0103002).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Erdong Wu.

Additional information

Manuscript submitted March 2, 2013.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Wu, E., Sun, G., Chen, B. et al. Neutron Diffraction Study of Strain/Stress States and Subgrain Defects in a Creep-Deformed, Single-Crystal Superalloy. Metall Mater Trans A 45, 139–146 (2014). https://doi.org/10.1007/s11661-013-1887-4

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11661-013-1887-4

Keywords

Navigation