On the interaction of hydrogen in Ni3Al intermetallic compound

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F01%3A00000877" target="_blank" >RIV/61989100:27360/01:00000877 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
On the interaction of hydrogen in Ni3Al intermetallic compound
Original language description
Intergranular brittleness of boron-free polycrystalline Ni3Al at ambient temperatures and pressures has been shown to be at last partially due to water vapour present in many testing environments [1-3]. The purpose of the present study is to investigatethe effect of hydrogen loading time and of specimen dimensions on hydrogen amounts in the specimens of different dimensions and heat treatments. The Ni3Al alloy used in this study has stoichiometric composition : 25 at. % Al and Ni balance and was prepared by directional solidifying in flowing argon. The resulting Ni3Al alloy rods were homogenised by annealing in vacuum for 6 h at 1373 K. The discs of dimension of 0,5; 1 and 2 mm were cut and hydrogen-charged at 1073 K in flowing hydrogen for 1; 4 and 7hours. After hydrogenation the samples were heated at 1073 K and at the melting temperature in order to measure the released hydrogen amounts. The experimental results show that maximum total hydrogen quantities were achieved for the spe
Czech name
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Czech description
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Project
<a href="/en/project/GA106%2F99%2FD070" target="_blank" >GA106/99/D070: Interaction of the hydrogen in the Na3Al based intermetallic alloy</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2001
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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