Eur. Phys. J. AP
Volume 5, Number 3, March 1999
|Page(s)||231 - 236|
|Published online||15 March 1999|
On the relation between Frank-Read source nature and fine slip line structure
Laboratoire de Métallurgie-Physique (UMR 6630 CNRS),
Université de Poitiers, UFR Sciences, Btiment SP2MI,
86960 Futuroscope Cedex, France
Corresponding author: grilhé@lmp.univ-poitiers.fr
Revised: 18 September 1998
Accepted: 15 December 1998
Published online: 15 March 1999
Slip patterning is influenced by both the distribution of Frank-Read sources in the bulk crystal and the dislocation interactions before emerging at the surface. The fine structure of slip lines is also highly dependent on the intrinsic nature of Frank-Read sources and particularly on their pinning points and external dislocation network, which is often not considered. In this paper, different types of Frank-Read sources are reviewed and the direct effects are described and discussed of these dislocation multiplication mechanisms on the step fine structure at the surface.
PACS: 61.72.Bb – Theories and models of crystal defects / 61.72.Hh – Indirect evidence of dislocations and other defects (resistivity, slip, creep, strains, internal friction, EPR, NMR, etc.)
© EDP Sciences, 1999
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