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Fluctuation-Induced Nucleation of PLC Bands

Published online by Cambridge University Press:  21 March 2011

P. Sapalidis ,
D. Dodou ,
P. Hähner ,
M. Zaiser  and
E.C. Aifan tis
P. Sapalidis
Affiliation:
Aristotle Univ ersity of Thessaloniki, Polytechnic School, 54006 Thessaloniki, Greece
D. Dodou
Affiliation:
Aristotle Univ ersity of Thessaloniki, Polytechnic School, 54006 Thessaloniki, Greece
P. Hähner
Affiliation:
European Commission, JR C-IAM, P.O. Box 2, NL-1755ZG Petten, The Netherlands
M. Zaiser
Affiliation:
Max-Planc k-Institut für Metallforsc hung, Heisenbergstr. 1, D-70569 Stuttgart, German y
E.C. Aifan tis
Affiliation:
Aristotle Univ ersity of Thessaloniki, Polytechnic School, 54006 Thessaloniki, Greece Center for the Mec hanics of Materials and Instabilities, Mic higan Technological University, Houghton, MI 49931
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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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 652: Symposium Y – Influences of Interface & Dislocation Behavior on Microstructure Evolution , 2000 , Y8.26
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1. Kubin, L.P. and Estrin, Y., Acta Metall. Mater., 38, 397 (1990).Google Scholar
2. Hähner, P., Mater. Sci. Engng., A 207, 208,216 (1996).Google Scholar
3. Penning, P., Acta Metall., 20, 1169 (1972).Google Scholar
4. Aifantis, E.C., Int. J. Plasticity, 3, 211 (1987).Google Scholar
5. Zbib, H.M. and Aifantis, E.C., Scripta Metall., 22, 1331 (1988).Google Scholar
6. Hähner, P., Mater. Sci. Eng., A 164, 24 (1993).Google Scholar
7. McCormick, P.G., Acta Metall., 36, 3061 (1988).Google Scholar
8. Zaiser, M. and Hähner, P., phys. stat. sol. (b), 199, 267 (1997).Google Scholar
9. Hähner, P., Ziegenbein, A. and Neuhäuser, H., Phil. Mag. A, in press.Google Scholar
10. Zaiser, M. and Hähner, P., Mater. Sci. Engng., A 238, 399 (1997).Google Scholar
11. Zaiser, M., Acta Mater., 45, 1695 (1997).Google Scholar
12. Petukhov, B.V., Sov. Phys. Solid State, 19, 228 (1977).Google Scholar
13. Zaiser, M. and Aifantis, E.C., Appl. Phys. 66, 393 (1998).Google Scholar
14. Hähner, P., Appl. Phys. A 62 473 (1996).Google Scholar
15. Büttiker, M. and Landauer, R., Phys. Rev. A, 23, 1397 (1981).Google Scholar