| Numéro |
J. Phys. Colloques
Volume 42, Numéro C5, Octobre 1981
ICIFUAS-7Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids |
|
|---|---|---|
| Page(s) | C5-1013 - C5-1018 | |
| DOI | https://doi.org/10.1051/jphyscol:19815156 | |
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-1013-C5-1018
DOI: 10.1051/jphyscol:19815156
Groupe d'Etudes de Métallurgie Physique et de Physique des Matériaux - E.R.A. 463, Institut National des Sciences Appliquées, Bât. 502, 69621 Villeurbanne Cedex, France
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-1013-C5-1018
DOI: 10.1051/jphyscol:19815156
INTERNAL FRICTION MEASUREMENTS RELATED TO THE TWO WAY MEMORY EFFECT IN Cu-Zn-Al ALLOY EXHIBITING THERMOELASTIC MARTENSITIC TRANSFORMATION
M. Morin, G. Guenin et P.F. GobinGroupe d'Etudes de Métallurgie Physique et de Physique des Matériaux - E.R.A. 463, Institut National des Sciences Appliquées, Bât. 502, 69621 Villeurbanne Cedex, France
Abstract
The alloys with Thermoelastic Martensitic Transformation, like the Cu-Zn-Al, exhibit, after a thermomechanical treatment named "training", The Two Way Shape Memory Effect. We have compared internal friction measurements versus amplitude for a "trained" and a "virgin" sample. The obtained results are coherent with the existence in the "trained" sample of particular sets of dislocations. These dislocations generates orientated internal stresses, which favour particular martensite variants during the direct transformation.