| Numéro |
J. Phys. Colloques
Volume 46, Numéro C4, Avril 1985
International Conference on the Structure and Properties of Internal Interfaces
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|---|---|---|
| Page(s) | C4-293 - C4-297 | |
| DOI | https://doi.org/10.1051/jphyscol:1985432 | |
International Conference on the Structure and Properties of Internal Interfaces
J. Phys. Colloques 46 (1985) C4-293-C4-297
DOI: 10.1051/jphyscol:1985432
1 Department of Applied Physics, University of Groningen, Nijenborgh 18, 9747 AG Groningen, The Netherlands
2 Laboratory of Metallurgy, Delft University of Technology, Rotterdamseweg 137, 2628 AL Delft, The Netherlands
J. Phys. Colloques 46 (1985) C4-293-C4-297
DOI: 10.1051/jphyscol:1985432
COMPUTED STRUCTURES OF TWIST BOUNDARIES COMPARED WITH TEM OBSERVATIONS
J.R. Heringa1, J.Th.M. de Hosson1 et F.W. Schapink21 Department of Applied Physics, University of Groningen, Nijenborgh 18, 9747 AG Groningen, The Netherlands
2 Laboratory of Metallurgy, Delft University of Technology, Rotterdamseweg 137, 2628 AL Delft, The Netherlands
Résumé
On présente un calcul numérique de la structure des joints de torsions dans un métal c.f.c. Pour des désorientations voisines de l'orientation d'une macle Σ = 3 une structure caractéristique, composée d'une étoile à six points, est trouvée. Cette structure a été également observée en microscopie électronique à transmission dans des lames minces d'or.
Abstract
The structure of (111) twist boundaries in f.c.c. metals is investigated by computer simulation. For coincidence orientations in the vicinity of the twin orientation a characteristic six-star pattern has been found, in agreement with TEM observations on dislocation networks in near-coherent twin boundaries in Au.