Comment on "Portevin-Le Chatelier effect".
Instabilities of plastic flow in alloys and the associated deformation patterns are currently attracting a lot of attention. We comment on a recent investigation by Franklin et al. [Phys. Rev. E 62, 8195 (2000)] on one such type of instability, the Portevin-Le Chatelier effect, attempting to clarify a few points about the instability mechanism as well as the reported experimental results.
Kubin
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Laboratoire d'Etude des Microstructures, CNRS-ONERA, 29 Avenue de la Division Leclerc, Boîte Postale 72, 92322 Châtillon Cedex, France.
Ananthakrishna
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Fressengeas
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