FATIGUE CRACK PROPAGATION BEHAVIOUR OF THE Al-Li ALLOY 8090 COMPARED TO 2024
- 1 September 1987
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 48 (C3) , C3-785
- https://doi.org/10.1051/jphyscol:1987392
Abstract
The fatigue crack propagation behaviour of the Al-Li alloy 8090 was evaluated on 25mm plate material and compared to the conventional high strength Al alloy 2024. Tests were performed in air and 3.5% NaCl solution at R-ratios of 0.1 and 0.7. The results revealed that for most conditions the Al-Li alloy was equivalent or better than the conventional Al alloy. The superior behaviour of 8090 was shown to be primarily a result of crack closureKeywords
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