Hydrogen absorption in a Ti-6Al-4V alloy prepared by ball milling was investigated in view of the reversible storage of hydrogen in a solid state. The material characterization by X-ray and neutron diffractometry demonstrated the formation of a single a phase whose unit cell expanded during the hydrogen absorption. The maximum storage capacity of this alpha phase was 1.8 wt% H and no hydride formation was observed, The existence of such a particular supersaturated hexagonal phase was attributed to the strongly defective structure formed by the mechanical alloying process.

Reversible hydrogen absorption in a Ti-6Al-4V alloy produced by mechanical alloying

BONACCORSI, Lucio Maria
;
2014

Abstract

Hydrogen absorption in a Ti-6Al-4V alloy prepared by ball milling was investigated in view of the reversible storage of hydrogen in a solid state. The material characterization by X-ray and neutron diffractometry demonstrated the formation of a single a phase whose unit cell expanded during the hydrogen absorption. The maximum storage capacity of this alpha phase was 1.8 wt% H and no hydride formation was observed, The existence of such a particular supersaturated hexagonal phase was attributed to the strongly defective structure formed by the mechanical alloying process.
Hydrogen absorbing materials; Titanium alloys; Mechanical alloying; Crystal structure; Neutron diffraction
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12318/6985
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 4
social impact