Effects of compositions on formation of 1, 2 protorides in Ti-Cr-V alloys

Takuya Tamura, Atsunori Kamegawa, Hitoshi Takamura, Masuo Okada

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


Ti-Cr-V alloys are known to absorb protium up to H/M = 2. However, Ti-Cr-20 at%V alloys with more than 56 at%Cr content were found to absorb up to H/M = 1. This paper aims to make clear the effects of compositions on formations of 1, 2 protorides in Ti-Cr-V alloys, and the structure of the mono-protorides. It was found that the mono-protorides with fcc and hcp structures exist. The mono-protoride with the fcc structure was different from the di-protoride with the FCC structure in the lattice constants. Some relationship between appearance of the mono-protorides and disappearance of the plateau regions in low hydrogen pressure regions was considered to exist. As a result, the appearance regions of 1, 2 protorides in Ti-Cr-V alloys were derived.

Original languageEnglish
Pages (from-to)410-413
Number of pages4
JournalMaterials Transactions
Issue number3
Publication statusPublished - 2002 Mar


  • Body centered cubic phase
  • Di-hydride
  • Hydrogen storage alloy
  • Low hydrogen pressure regions
  • Mono-hydride
  • Titanium-chromium-vanadium alloys

ASJC Scopus subject areas

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


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