| Numéro |
J. Phys. Colloques
Volume 48, Numéro C3, Septembre 1987
4th International Aluminium Lithium Conference
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|---|---|---|
| Page(s) | C3-613 - C3-619 | |
| DOI | https://doi.org/10.1051/jphyscol:1987371 | |
J. Phys. Colloques 48 (1987) C3-613-C3-619
DOI: 10.1051/jphyscol:1987371
EFFECT OF CRYSTALLOGRAPHIC AND MORPHOLOGIC TEXTURES ON THE ANISOTROPY OF MECHANICAL PROPERTIES OF Al-Li ALLOYS
P. LIPINSKI1, M. BERVEILLER1, A. HIHI2, P. SAINFORT3 et P. MEYER31 LPMM, Institut Supérieur de Génie Mécanique et Productique, ENIM, Ile du Saulcy. F-57000 Metz, France
2 LMM, Faculté des Sciences, Université Mohamed V, Rabat, Maroc
3 Cégédur-Péchiney, Centre de Recherche et Développement, B.P. 27, F-38340 Voreppe, France
Abstract
A new formulation of the self consistent model has been applied to predict the plastic behaviour of Al-Li Alloys. This mode1 enables to take into account simultaneously the crystallographic texture, the morphology of grains, the internal stresses evolution and the anisotropy of intracrystalline hardening. Microscopic observations and analyses of crystallographic textures are used to constitute the data for the self consistent scheme. As results of such calculations, we present the variations of plastic properties versus the angle between the tensile axis and rolling direction. Initial Yield point, macroscopic hardening modulus as well as transversal plastic flow are examined. The direct comparison with experimental results is given. A satisfactory agreement with numerical results is observed.