| Numéro |
J. Phys. Colloques
Volume 42, Numéro C5, Octobre 1981
ICIFUAS-7Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids |
|
|---|---|---|
| Page(s) | C5-735 - C5-740 | |
| DOI | https://doi.org/10.1051/jphyscol:19815113 | |
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-735-C5-740
DOI: 10.1051/jphyscol:19815113
Institut für Festkörperforschung, Kernforschungsanlage Jülich, D-5170 Jülich, F.R.G.
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-735-C5-740
DOI: 10.1051/jphyscol:19815113
MODELS FOR FROZEN-FREE-SPLIT PHENOMENA IN e- -IRRADIATED Al AND Al-Fe
K.-H. Robrock et H.R. SchoberInstitut für Festkörperforschung, Kernforschungsanlage Jülich, D-5170 Jülich, F.R.G.
Abstract
Samples of pure Al and Al containing 400 atppm Fe have been irradiated with electrons at 4.2K and annealed at subsepuently higher temperatures. During the annealing program in pure Al, the growth and decay of two pairs of mechanical relaxation peaks was observed, and in Al-Fe of one pair. The members of each pair grow and decay in a parallel fashion. They are explained as being due to the stress induced occupation of two different sets of elastic energy levels via two different relaxation modes by the reorientation of the same defect. For the pairs in pure Al and for the pair observed in Al-Fe atomistic models are given based on computer simulation studies.