Slip trace characterisation of Ni3Al by atomic force microscopy.

Abstract

We examined by atomic force microscope the slip traces produced on Ni3Al single crystals pre-deformed up to nearly 1% plastic strain at three temperatures in the anomaly domain: 293K, 500K and 720K. It is observed that, whatever the deformation temperature, the slip traces essentially belong to the primary octahedral slip system. The lengths of the slip lines become shorter and shorter with increasing temperature, while the number of dislocations that constitutes the lines is approximately constant. These results are interpreted in terms of a decreasing mean free path of the mobile dislocations when the temperature is raised. The implications of these results in the understanding of the flow stress anomaly are underscored.

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References

  1. 1.

    P. Veyssière and G. Saada, Dislocations in solids, ed. F.N.R. Nabarro and M.S. Duesbery (Amsterdam:Elsevier Science, 1996) p. 253.

  2. 2.

    E. M. Nadgorny and Y. L. Iunin, in: High Temperature Ordered Intermetallic Alloys VI 364, ed. J. A. Horton, I. Baker, S. Hanada, R. D. Noebe and D. S. Schwartz (Materials Research Society, Pittsburgh, 1995) p. 707.

    CAS  Google Scholar 

  3. 3.

    C. B. Jiang, S. Patu, Q. Z. Lei and C. X. Shi, Philos. Mag. Letters, 78, 1 (1998).

    CAS  Article  Google Scholar 

  4. 4.

    S. Miura, S. Ochia, Y. Oya, Y. Mishima and T. Suzuki, in: High Temperature Ordered Intermetallic Alloys III 133, ed. C. T. Liu, A. I. Taub, N. S. Stoloff and C. C. Koch (Materials Research Society, 1989) p. 341.

    Google Scholar 

  5. 5.

    P.H. Thornton, R.G. Davies and J.L. Johnston, Metall. Trans., 1, 207 (1970).

    CAS  Google Scholar 

  6. 6.

    S.S. Ezz and P.B. Hirsch, Phil. Mag. A, 69, 105 (1994).

    CAS  Article  Google Scholar 

  7. 7.

    B. Matterstock, J.-L. Martin, J. Bonneville, T. Kruml. in: High Temperature Ordered Intermetallic Alloys VIII 552, ed. E. P. George, M. J. Mills and M. Yamaguchi (Materials Research Society, 1999) p. KK. 5.17.

    Google Scholar 

  8. 8.

    P. Spätig, PhD Thesis, Ecole Polytechnique Fédérale de Lausanne, 1995.

    Google Scholar 

  9. 9.

    J. Bonneville and J. L. Martin, in: Multiscale Phenomena in Plasticity Nato Science Series - Vol. 367 ed. J. Lepinoux, D. Mazière, V. Pontikis and G. Saada (Kluwer Academic Publishers, London, 2000) p. 57.

    CAS  Google Scholar 

  10. 10.

    C. Coupeau, J. Bonneville, B. Matterstock, J. Grilhé and J.-L. Martin, Scripta Mat., 41, 945 (1999).

    CAS  Article  Google Scholar 

  11. 11.

    A.E. Staton-Bevan and R.D. Rawlings, Phys. Stat. Sol. A, 29, 613 (1975).

    CAS  Article  Google Scholar 

  12. 12.

    J. Bonneville, N. Baluc and J.-L. Martin, Proc. 6th Int. Symp. (JIMIS-6) on Intermetallic Compounds, ed. O. Izumi (The Japan Institut of Metals, 1991) p. 323.

  13. 13.

    N. Baluc, PhD Thesis, Ecole Polytechnique Fédérale de Lausanne, 1989.

    Google Scholar 

  14. 14.

    C. Lall, S. Chin and D.P. Pope, Met. Trans. A, 10, 1323 (1979).

    Article  Google Scholar 

  15. 15.

    A. Couret, Y.Q. Sun and P.B. Hirsch, Phil. Mag. A; 67, 29 (1993).

    CAS  Article  Google Scholar 

  16. 16.

    G. Saada and P. Veyssière, Phil. Mag. A, a) 66, 1081 (1992); b) 70, 925 (1994).

    CAS  Article  Google Scholar 

  17. 17.

    D. Caillard and G. Molenat, Proc. 20th Risø Int. Symp. on Materials. Science: Deformation-Induced Microstructure: Analysis and Relation to Properties, ed. J. B. Bilde-Sørensen et al., Risø National. Laboratory. (Roskilde, Denmark 1999) p. 1.

  18. 18.

    C. Coupeau and J. Grilhé, J. of Mat. Sc. Eng. A, 271, 242 (1999).

    Article  Google Scholar 

  19. 19.

    B. Cheng, E. Carreno-Morelli, N. Baluc, J. Bonneville and R. Schaller, Phil. Mag. A, 79, 2227 (1999).

    CAS  Article  Google Scholar 

  20. 20.

    F. Louchet, Phil. Mag. A, 72, 905 (1995) au ]20a._F. Louchet, Phil. Mag. A, 77, 761 (1998).

    CAS  Article  Google Scholar 

  21. 21.

    C. Coupeau, J.C. Girard and J. Grilhé, J. of Vacuum Sci. Technology B, 16 (4), 1964 (1998).

    CAS  Article  Google Scholar 

  22. 22.

    C. Coupeau, F. Cleymand and J. Grilhé, Scripta Mat., 43, 187 (2000).

    CAS  Article  Google Scholar 

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Acknowledgment

The authors wish to thank Prof. J.-L. Martin (Ecole Polytechnique Fédérale de Lausanne) and Prof. J. Grilhé (Université de Poitiers) for the numerous and highlighted discussions on the subject. We are also indebted to F. Préau for his help in the AFM observations and to G. Beney for preparing high quality specimen surfaces.

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Correspondence to Christophe Coupeau.

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Coupeau, C., Kruml, T. & Bonneville, J. Slip trace characterisation of Ni3Al by atomic force microscopy.. MRS Online Proceedings Library 646, 300–305 (2000). https://doi.org/10.1557/PROC-646-N5.14.1

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