Počet záznamů: 1
Hydrogen absorption in Mg-Gd alloy
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SYSNO ASEP 0508749 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hydrogen absorption in Mg-Gd alloy Tvůrce(i) Vlček, M. (CZ)
Čízek, J. (CZ)
Lukáč, František (UFP-V) ORCID
Hruška, P. (CZ)
Smola, B. (CZ)
Stulíková, I. (CZ)
Kudrnová, H. (CZ)
Minárik, P. (CZ)
Kmjec, T. (CZ)
Vlasák, T. (CZ)Celkový počet autorů 10 Zdroj.dok. International Journal of Hydrogen Energy. - : Elsevier - ISSN 0360-3199
Roč. 42, č. 35 (2017), s. 22598-22604Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova rare-earth ; magnesium alloys ; unexpected formation ; storage properties ; microstructure ; nd ; re ; hydrides ; pr ; er ; Hydrogen ; Magnesium alloys ; Rare earth elements Vědní obor RIV JK - Koroze a povrchové úpravy materiálů Obor OECD Materials engineering CEP GA16-12828S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UFP-V - RVO:61389021 UT WOS 000411168200043 EID SCOPUS 85018168899 DOI 10.1016/j.ijhydene.2017.04.012 Anotace Mg-Gd alloy containing 22 wt.% Gd was studied in the present work. As cast alloy contains Mg46Gd9 phase located at pockets along grain boundaries. In addition the as-cast alloy contains a low concentration of rectangular GdH2 particles. Solution treatment at 530 degrees C was performed in order to dissolve Gd in the Mg matrix. The solution treatment in air enhanced the volume fraction of GdH2 particles by one order of magnitude. The formation of GdH2 particles is caused by hydrogen-induced decomposition of the Mg46Gd9 intermetallic phase. The source of hydrogen is water vapor reacting with Mg surface. A Gd-rich oxide layer was formed during solution treatment in air. Building of the oxide layer requires diffusion of Gd solutes from bulk to the surface and leads to formation of a Gddepleted sub-surface region. It was found that solution treatment in vacuum results in substantially lower volume fraction of GdH2 particles. Alternative methods of formation of GdH2 particles in Mg-Gd alloy were examined as well and are discussed in the paper. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2020 Elektronická adresa https://www.sciencedirect.com/science/article/abs/pii/S0360319917312922?via%3Dihub
Počet záznamů: 1