Preparation and structural, thermal and hydriding characteristics of melt-spun Mg-Ni alloys

G. Friedlmeier, M. Arakawa, T. Hirai, E. Akiba

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Abstract

Glassy, nanostructured and crystalline hydride-forming Mg1-xNix alloys with five different compositions (0≤x≤0.33) were prepared by rapid quenching of the melt with the melt-spinning method. Glassy Mg-Ni alloys (Mg0.87Ni0.13 and Mg0.84Ni0.16) crystallize at around 438 K. During crystallization, an intermediate metastable Mg-Ni phase is formed. Hydrogen activation of these alloys requires temperatures and pressures above 663 K and about 1.5 MPa, respectively. Thereafter a very high storage capacity of nearly 6 mass% H was achieved with Mg0.87Ni0.13.

Original languageEnglish
Pages (from-to)107-117
Number of pages11
JournalJournal of Alloys and Compounds
Volume292
Issue number1-2
DOIs
Publication statusPublished - Nov 15 1999

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All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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