Hydrogen storage, microstructure and mechanical properties of strained mg65ni20cu5y10 metallic glass

Ádám Révész, Ágnes Kis-Tóth, Péter Szommer, Tony Spassov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Melt-spun amorphous Mg65Ni20Cu5Y10 metallic glass compacts were subjected to severe shear deformation by high-pressure torsion. High-resolution X-ray diffraction analysis and scanning electron microscopy revealed that high-pressure torsion resulted in a deformation dependent microstructure. Nanoindentation measurements indicated that the heavy shear deformation yields an increase in hardness. High-pressure calorimetry measurements revealed that hydrogen uptake in the fully amorphous alloy occurs at a significantly lower temperature compared to the fully crystallized state, while the amount of absorbed hydrogen increased considerably after shear strain due to the formation of Mg2Ni crystals.

Original languageEnglish
Title of host publicationMaterials Science, Testing and Informatics VI
Pages74-79
Number of pages6
DOIs
Publication statusPublished - Jan 1 2013
Event8th Hungarian Conference on Materials Science - Balatonkenese, Hungary
Duration: Oct 9 2011Oct 11 2011

Publication series

NameMaterials Science Forum
Volume729
ISSN (Print)0255-5476

Other

Other8th Hungarian Conference on Materials Science
CountryHungary
CityBalatonkenese
Period10/9/1110/11/11

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Keywords

  • Amorphous alloy
  • H-storage
  • High-pressure torsion
  • Mg-based

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Révész, Á., Kis-Tóth, Á., Szommer, P., & Spassov, T. (2013). Hydrogen storage, microstructure and mechanical properties of strained mg65ni20cu5y10 metallic glass. In Materials Science, Testing and Informatics VI (pp. 74-79). (Materials Science Forum; Vol. 729). https://doi.org/10.4028/www.scientific.net/MSF.729.74