New useful function of hydrogen in materials

Masuo Okada, Jun Nakahigashi, Asaya Fujita, Miho Yamauchi, Atsunori Kamegawa

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Useful functions of hydrogen in materials are studied. (a) Simultaneous improvements of electrical conductivity and mechanical strength for Cu-3mass%Ti hydrogenated alloy were achieved. The hydrogenation reaction proceeds within the range of spinodal decomposition temperature, and then the tensile strength of the alloy was increased. (b) Hydrogen-treatment for a β-rich α + β type Ti-4.5Al-3V-2Mo-2Fe alloy yields the fine grain with the size of about 0.3 μm. This alloy exhibited the high superplastic elongation of 10,600% at 923 K. (c) Pressure induced magnetic phase transition of hydrogenated La(FexSi1-x)13 compounds was applied to magnetostrictive stress-sensor. (d) Ordering and Catalytic activity of CuPd nanoalloys are promoted by hydrogen treatment.

Original languageEnglish
Pages (from-to)S401-S405
JournalJournal of Alloys and Compounds
Issue numberSUPPL1
Publication statusPublished - 2013
Externally publishedYes


  • Cu-Ti alloys
  • Itinerant-electron metamagnetic transition
  • Ordered nanoalloy
  • Spinodal alloy
  • Ti-V-Al alloys
  • Useful hydrogen function in materials

ASJC Scopus subject areas

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


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