Investigation of H + implanted Fe-Al alloys

In the present work hydrogen interaction with vacancies was investigated in Fe-Al alloys with various concentration of vacancies. The Fe-Al samples were implanted with low energy H+ ions (100 keV). This procedure introduced high hydrogen concentration into relatively narrow sub-surface region in the...

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Bibliographic Details
Published in:Journal of physics. Conference series 2014-01, Vol.505 (1), p.12013-4
Main Authors: Lukáč, F, Čížek, J, Procházka, I, Jirásková, Y, Janičkovič, D, Veterníková, J Šimeg, Anwand, W, Butterling, M
Format: Article
Language:English
Subjects:
Alloys
Ferrous alloys
Formations
Hydrogen
Intermetallic compounds
Investigations
Iron
Iron aluminum alloys
Low energy
Microscopes
Physics
Positron annihilation
Positron annihilation spectroscopy
Surface stability
Thermal stability
Vacancies
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Summary:In the present work hydrogen interaction with vacancies was investigated in Fe-Al alloys with various concentration of vacancies. The Fe-Al samples were implanted with low energy H+ ions (100 keV). This procedure introduced high hydrogen concentration into relatively narrow sub-surface region in the depth of ∼500 nm. Variable energy positron annihilation spectroscopy (VEPAS) was employed for investigation of hydrogen interaction with vacancies in the sub-surface region. This study revealed formation of vacancy hydrogen complexes in the sub-surface region. Thermal stability of vacancy-hydrogen complexes was investigated as well.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/505/1/012013