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Behavior of Hydrogen in V Zr Ti Ni Proti

Hideyuki Saitoh, Hirofumi Homma

2026enradiolumigraphyhydrogenabsorptionalloysvanadium

Abstract

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Tritium radiolumigraphy has been applied to V-Zr-Ti-Ni protium absorption alloys with the two-phase structure of BCC phase and Laves phase to examine the behavior of protium. The specimens were V₁₋ₓZrₓTi₁.₉₄Ni₁.₉₈ and V₁₋ₓZrₓTi₁.₉₆Ti₁.₁₈, the ratio of the BCC phase to the Laves phase in them being 4 : 1 and 1 : 1, respectively. In the range of lower hydrogen content as hydride never formed, hydrogen concentration in the Laves phase is observed to be higher than in the BCC phase by tritium radiolumigraphy. The protium concentration in the BCC phase and Laves phase in the alloy has been determined to be 20 mass ppm and 1300 mass ppm, respectively. It has been found that the preferential affinity for the protium penetration to the alloy is not the BCC phase but the Laves phase. In the range of higher hydrogen content as hydride formed, the amount of absorbed hydrogen has increased when the ratio of BCC phase to Laves phase increases, by the PCT measurement. It has been found that the main hydrogen storage phase is BCC phase. An extraordinary phenomenon has been observed for the time dependence of hydrogen concentration by the radiolumigraphy.

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Cite This Work

@article{dc138963-34d7-4ac1-acc8-aa1f6e75ab3b,
  title={Behavior of Hydrogen in V Zr Ti Ni Proti},
  author={Hideyuki Saitoh and Hirofumi Homma},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Behavior of Hydrogen in V Zr Ti Ni Proti
AU  - Hideyuki Saitoh
AU  - Hirofumi Homma
PY  - 2026
LA  - en
ER  -

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