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Dislocation patterning and conservative recovery in single slip

Published online by Cambridge University Press:  14 March 2011

Patrick Veyssière  and
Fabienne Grégori
Patrick Veyssière
Affiliation:
LEM, CNRS-ONERA, BP 72, 92322 Châtillon cedex, France
Fabienne Grégori
Affiliation:
LPMTM, Institut Galilée, 99 av. J.B. Clément, 93430 Villetaneuse, France
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Abstract

Prismatic loops generated by cross-slip are organised in staircase-like strings such that the beginning of a loop corresponds in the screw orientation with the end of its neighbour. Strings constitute nucleation sites for dislocation tangles thus offering an explanation for spontaneous patterning in single glide. A loop string can be partially and even totally eliminated by a single impacting dislocation. In dense walls, loop refinement can also take place conservatively by mutual annihilation of loops of opposite signs.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 683: Symposium BB – Materials Instabilities and Patterning in Metals , 2001 , BB5.2.1
Copyright
Copyright © Materials Research Society 2001

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References

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