Protium absorption properties of Ti-V-Cr-Mn alloys with a b.c.c. structure

T. Tamura, Y. Tominaga, K. Matsumoto, T. Fuda, T. Kuriiwa, A. Kamegawa, H. Takamura, M. Okada

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70 Citations (Scopus)


The protium absorption-desorption properties of Ti-V-Cr-Mn alloys were studied by varying the contents of Mn, Ti and V in the alloys. It was found that Mn addition of <10 at% was effective in improving the slope of the plateau region without any reduction of the protium absorption-desorption capacity. For Ti-V-Cr-Mn alloys, the α-Ti phase, which does not contribute to the protium storage capacity, appeared along grain boundaries during heat treatment. The formation of the α-Ti phase was found to be suppressed by reducing the Ti content and increasing the V content. By inhibiting the appearance of the α-Ti phase along the grain boundary, the protium absorption-desorption capacity of Ti-xV-Cr-Mn (x=45, 55; Ti/Cr/Mn=24:31:10) heat-treated alloys exhibited 2.7 mass% H, the highest value reported so far.

Original languageEnglish
Pages (from-to)522-525
Number of pages4
JournalJournal of Alloys and Compounds
Publication statusPublished - 2002 Jan 17
EventProceedings of the International Symposium on Metal-Hydrogen (MH 2000) - Noosa Heads, QLD, Australia
Duration: 2000 Oct 12000 Oct 6


  • b.c.c. phase
  • Heat treatment
  • Hydrogen storage alloy
  • Titanium-vanadium-chromium-manganese alloys


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