| Issue |
J. Phys. Colloques
Volume 48, Number C3, Septembre 1987
4th International Aluminium Lithium Conference
|
|
|---|---|---|
| Page(s) | C3-597 - C3-603 | |
| DOI | https://doi.org/10.1051/jphyscol:1987369 | |
4th International Aluminium Lithium Conference
J. Phys. Colloques 48 (1987) C3-597-C3-603
DOI: 10.1051/jphyscol:1987369
ONERA, 29, Avenue de la Division Leclerc, B.P. 72, F-92322 Châtillon Cedex, France
J. Phys. Colloques 48 (1987) C3-597-C3-603
DOI: 10.1051/jphyscol:1987369
INFLUENCE OF GRAIN MORPHOLOGY AND TEXTURE ON THE DEFORMATION AND FRACTURE OF EXTRUDED CP276 Al-Li ALLOY
F. BROUSSAUD et C. DIOTONERA, 29, Avenue de la Division Leclerc, B.P. 72, F-92322 Châtillon Cedex, France
Abstract
The mechanical properties of a CP 276 extruded flat bar have been evaluated in the T351 and T851 conditions. The tensile properties in the extrusion direction (L) exhibit a pronounced profile along the long-traverse direction (T). Changes in slip line pattern and in fracture mode have been studied as a function of the position of L specimens along the T direction. Rupture modes depend on grain morphology. Deformation characteristics appear to be related to variations of preferred local crystallographic orientation. Schmid and orientation factors have been estimated for the edge and the centre of the flat bar.