| Numéro |
J. Phys. Colloques
Volume 48, Numéro C3, Septembre 1987
4th International Aluminium Lithium Conference
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|---|---|---|
| Page(s) | C3-861 - C3-870 | |
| DOI | https://doi.org/10.1051/jphyscol:19873101 | |
4th International Aluminium Lithium Conference
J. Phys. Colloques 48 (1987) C3-861-C3-870
DOI: 10.1051/jphyscol:19873101
Ecole Centrale des Arts et Manufactures, F-92295 Châtenay-Malabry Cedex, France
J. Phys. Colloques 48 (1987) C3-861-C3-870
DOI: 10.1051/jphyscol:19873101
CORRELATION BETWEEN LONG TIME AND SHORT TIME TESTS TO DETECT PITTING AND EXFOLIATION CORROSION IN Al-Li (8090) ALLOYS
J. GARCIA, P. PONTHIAUX, M. HABASHI et J. GALLANDEcole Centrale des Arts et Manufactures, F-92295 Châtenay-Malabry Cedex, France
Abstract
We have studied the behaviour of an Al-Li alloy (8090) to pitting corrosion and exfoliation as a function of ageing temperature. Three methods have been employed : 1) visual estimation using EXCO-test (ASTM recommandations), 2) potential-solution level measurements in EXCO, CH3OH/CC14, CH3OH/CCl4/CuCl2 and NaCl/H2O2 solutions, 3) stress corrosion cracking by slow strain rate method. Correlation has been found between these methods, especially in the ageing temperatures range 125° to 190°C.