DISSOCIATION AND PLASTICITY OF LAYER CRYSTALS

  • DELAVIGNETTE P
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Abstract

Rksum6.-Le mecanisme de deformation des cristaux lamellaires ideaux se fait exclusivement par glissement de dislocations sur le plan de base, il n'y a pas d'emmelement de dislocations condui-sant a un ecrouissage. Des defauts de structure preexistants comme des boucles de dislocation de Frank ou des dislocations non basales de croissance peuvent conduire a un durcissement. Dans des cristaux lamellaires non ideaux, un systkme de glissement secondaire peut Etre active, ce qui peut donner lieu a un ecrouissage. Abstract.-The deformation process in an ideal layer crystal proceeds exclusively by dislocations gliding along the basal plane. No tangling of the dislocations is expected. Structural defects present before deformation are responsible of hardening and work hardening. This is the case for Frank dislocation loops and non-basal grow-in dislocations. In non ideal layer crystals, a secondary glide system may sometimes be operative, giving rise to work hardening.

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APA

DELAVIGNETTE, P. (1974). DISSOCIATION AND PLASTICITY OF LAYER CRYSTALS. Le Journal de Physique Colloques, 35(C7), C7-181-C7-188. https://doi.org/10.1051/jphyscol:1974720

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