Fluctuation-Induced Nucleation of PLC Bands

Abstract

The inuence of mesoscopic strain-rate uctuations on the n ucleation of localized deformation bands (PLC bands) in dynamically strain ageing materials is discussed. It is shown that uctuations ma y lead to a macroscopic localization of plastic ow even if linear stability analysis (LSA) of the macroscopic constitutiv e equations predicts stable deformation beha vior. The resulting quantitative corrections to linear stability analysis are evaluated, and implications for the reliabilit y of LSA results are discussed.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    L.P. Kubin and Y. Estrin, Acta Metall. Mater., 38, 397 (1990).

    Article  Google Scholar 

  2. 2.

    P. Hähner, Mater. Sci. Engng., A207, 208,216 (1996).

    Article  Google Scholar 

  3. 3.

    P. Penning, Acta Metall., 20, 1169 (1972).

    Article  Google Scholar 

  4. 4.

    E.C. Aifantis, Int. J. Plasticity, 3, 211 (1987).

    Article  Google Scholar 

  5. 5.

    H.M. Zbib and E.C. Aifantis, Scripta Metall., 22, 1331 (1988).

    CAS  Article  Google Scholar 

  6. 6.

    P. Hähner, Mater. Sci. Eng., A164, 24 (1993).

    Google Scholar 

  7. 7.

    P.G. McCormick, Acta Metall., 36, 3061 (1988).

    CAS  Article  Google Scholar 

  8. 8.

    M. Zaiser and P. Hähner, phys. stat. sol. (b), 199, 267 (1997).

    CAS  Article  Google Scholar 

  9. 9.

    P. Hähner, A. Ziegenbein and H. Neuhäuser,Phil. Mag. A, in press.

  10. 10.

    M. Zaiser and P. Hähner, Mater. Sci. Engng., A 238, 399 (1997).

    CAS  Article  Google Scholar 

  11. 11.

    M. Zaiser, Acta Mater., 45, 1695 (1997).

    CAS  Article  Google Scholar 

  12. 12.

    B.V. Petukhov, Sov. Phys. Solid State, 19, 228 (1977).

    Google Scholar 

  13. 13.

    M. Zaiser and E.C. Aifantis, Appl. Phys. 66, 393 (1998).

    CAS  Article  Google Scholar 

  14. 14.

    P. Hähner, Appl. Phys. A 62 473 (1996).

    Article  Google Scholar 

  15. 15.

    M. Büttiker and R. Landauer, Phys. Rev. A, 23, 1397 (1981).

    Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to P. Sapalidis.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Sapalidis, P., Dodou, D., Hähner, P. et al. Fluctuation-Induced Nucleation of PLC Bands. MRS Online Proceedings Library 652, 826 (2000). https://doi.org/10.1557/PROC-652-Y8.26

Download citation