Numéro
J. Phys. Colloques
Volume 42, Numéro C5, Octobre 1981
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
Page(s) C5-169 - C5-173
DOI https://doi.org/10.1051/jphyscol:1981526
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids

J. Phys. Colloques 42 (1981) C5-169-C5-173

DOI: 10.1051/jphyscol:1981526

INTERNAL STRESS MEASUREMENT IN ALUMINIUM BY "DIP-TEST" METHOD AND CORRELATION WITH THE BORDONI RELAXATION EVOLUTION

J. Chicois1, A. Hamel1, R. Fougères1, C. Esnouf2, G. Fantozzi2 et J. Perez2

1  Laboratoire de Métallurgie et Traitements Thermiques, Bât. 303
2  Groupe d'Etudes de Métallurgie Physique et Physique des Matériaux, E.R.A. 463 Bât. 502, Institut National des Sciences Appliquées de Lyon - 69621 Villeurbanne Cedex, France


Abstract
The Bordoni relaxation appears only with a sufficient value of stress given by the Paré condition. We have made a direct measurement of internal stress in order to know its evolution during plastic deformation or annealing. This evolution is compared with the behaviour of the Bordoni relaxation : variation of the relaxation strength on the one hand and non linear properties on the other hand.