Influence of the palladium coating on the hydrogen embrittlement of Ni61Nb33Zr6 amorphous tapes obtained by melt spinning
Gyorgy THALMAIER, Ioan VIDA-SIMITI, Niculina Argentina SECHELdownload PDF
Abstract. The current work is focused towards the properties of Ni61Nb33Zr6 amorphous alloy for use in hydrogen-related energy applications. The master alloys were prepared by arc melting using high purity metals in a Ti-gettered argon atmosphere. The alloys were melted several times to improve homogeneity. The ingots were induction-melted under a argon atmosphere in a quartz tube and a graphite crucible, injected through a nozzle onto a Cu wheel to produce rapidly solidified amorphous ribbons. The characterization of the amorphous ribbons was done by X-ray diffraction, DSC analysis and hardness tests. The hydrogen charging was done electrochemically for low temperature tests and by heating in a hydrogen atmosphere at different temperatures in the case of the high temperature tests. It was found that the palladium plating reduces the hydrogen embrittlement limit by 50 ℃.
Amorphous alloys; Hydrogenation; Embrittlement, Palladium coating
Published online 11/5/2018, 6 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Gyorgy THALMAIER, Ioan VIDA-SIMITI, Niculina Argentina SECHEL, ‘Influence of the palladium coating on the hydrogen embrittlement of Ni61Nb33Zr6 amorphous tapes obtained by melt spinning’, Materials Research Proceedings, Vol. 8, pp 89-94, 2018
The article was published as article 10 of the book Powder Metallurgy and Advanced Materials
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