| Budget Amount *help |
¥26,260,000 (Direct Cost: ¥20,200,000、Indirect Cost: ¥6,060,000)
Fiscal Year 2009: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2008: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2007: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
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| Research Abstract |
The microstructures of Nb-TiNi alloys consisted of the bcc-(Nb, Ti) and B2-TiNi phases are controlled, and the relation between microstructure and hydrogen permeability is investigated. Hydrogen permeability along the normal direction in an anisotropic alloy prepared by heavy working can be improved at lower temperature and/or shorter annealing period with increasing thickness reduction. Lamellar microstructure of the eutectic Nb-TiNi alloy is disappeared by annealing forming granular two-phase structure, and its hydrogen permeability is reduced, which is caused from a reduction of hydrogen diffusivity.
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