| Numéro |
J. Phys. Colloques
Volume 42, Numéro C5, Octobre 1981
ICIFUAS-7Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids |
|
|---|---|---|
| Page(s) | C5-905 - C5-909 | |
| DOI | https://doi.org/10.1051/jphyscol:19815139 | |
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-905-C5-909
DOI: 10.1051/jphyscol:19815139
Laboratoire de Métallurgie, ENSCP, 11, rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-905-C5-909
DOI: 10.1051/jphyscol:19815139
INTERNAL FRICTION MEASUREMENTS DURING THE TEMPERING OF THE 1000°C AS QUENCHED Cu-10.1 wt % Al ALLOY
M. Lebienvenu, E. Capelle, G. Ocampo et B. DuboisLaboratoire de Métallurgie, ENSCP, 11, rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
Abstract
The damping of 1000°C as quenched samples of Cu-10.1 wt % Al was studied either after tempering or during heating between room temperature and 350°C. The room temperature measurements showed a significant decrease between 50°C and 220°C. Up this tempering temperature a maximum was observed at about 280°C depending on the experimental conditions. The vacancy mobility would be the main reason of the internal friction spectrum. Ordering process appeared in the β' martensite leading to a transition state between S.R.O. and L.R.O. However a flat spectrum Q-1(T) was obtained up to 250°C during the heating of an as quenched-sample.