| Numéro |
J. Phys. Colloques
Volume 48, Numéro C8, Décembre 1987
Fifth European Conference on Internal Friction and Ultrasonic Attenuation in Solids
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|---|---|---|
| Page(s) | C8-83 - C8-87 | |
| DOI | https://doi.org/10.1051/jphyscol:1987808 | |
Fifth European Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 48 (1987) C8-83-C8-87
DOI: 10.1051/jphyscol:1987808
Physics Department University of Bahrain, College of Arts, Science and Education, PO Box 1082, Bahrain
J. Phys. Colloques 48 (1987) C8-83-C8-87
DOI: 10.1051/jphyscol:1987808
DAMPING MEASUREMENTS FOR STUDYING THE RELATION BETWEEN TYPE OF DISLOCATIONS INTRODUCED BY PLASTIC DEFORMATION
W.E. ALNASER et M. ZeinPhysics Department University of Bahrain, College of Arts, Science and Education, PO Box 1082, Bahrain
Abstract
A qualitative and quantitative investigation in revealing the type of dislocation (edge-screw) produced by compressional deformation in polycrystalline aluminium is presented. However, no electron microscope was utilized to such a study. The effect of small (<3%) and large deformations (>10%) on the maxima of the dislocation resonance strength dmax and its frequency fmax at temperatures 100,200 and 300K is discussed. The effect of the temperature on the dislocation density, i.e. deformation, was studied.