Hydrogen-induced amorphization in off-stoichiometric Ti3Al

K. Hashi, K. Ishikawa, K. Suzuki, K. Aoki

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The structural changes of stoichiometric and off-stoichiometric Ti3Al are investigated. The analysis used a combination of X-ray diffraction, transmission electron microscopy, differential scanning calorimetry and a hydrogen analysis. It is shown that the stoichiometric Ti3Al(Ti0.75Al0.25) absorbs hydrogen in the crystalline state and changes to fcc type (CaF2)Ti3AlHx, but off-stoichiometric Ti3Al(Ti0.70Al0.30) amorphizes by hydrogenation at room temperature.

Original languageEnglish
Pages (from-to)2591-2595
Number of pages5
JournalScripta Materialia
Issue number11
Publication statusPublished - 1 Jun 2001
Externally publishedYes


  • Amorphous alloys
  • Hydrogen
  • Phase transformation
  • Ti-Al
  • XRD

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