The role of water in the hydridation of AlLi alloys

The Al-2.3 Li alloys can form, by contact with hydrogen gas at temperatures up to 350°C and H pressures of 0.1 MPa, a precipitate of LiH. The reactivity is greatly increased after soaking the sample in distilled water. It is suggested that decomposition under H 2 pressure of the hydroxide Li-rich sh...

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Bibliographic Details
Published in:Corrosion science 1992-10, Vol.33 (10), p.1501-1505
Main Authors: El Bouri, A., Gerard, N.
Format: Article
Language:English
Subjects:
Applied sciences
Corrosion
Corrosion environments
Exact sciences and technology
Metals. Metallurgy
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Summary:The Al-2.3 Li alloys can form, by contact with hydrogen gas at temperatures up to 350°C and H pressures of 0.1 MPa, a precipitate of LiH. The reactivity is greatly increased after soaking the sample in distilled water. It is suggested that decomposition under H 2 pressure of the hydroxide Li-rich shell, formed by contact with water, allows the H 2 absorption through the Al 2O 3 film which is no longer protective.
ISSN:0010-938X
1879-0496
DOI:10.1016/0010-938X(92)90028-2