| Budget Amount *help |
¥41,340,000 (Direct Cost: ¥31,800,000、Indirect Cost: ¥9,540,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2014: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
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| Outline of Final Research Achievements |
In order to develop novel Ti-based superelastic alloys with large superelastic recovery strain and high strength, Ti-Zr based multi-component alloys were designed, and the transformation characteristics and deformation behavior were investigated. The effects of alloying elements on the crystal structure, phase stability, martensitic transformation behavior and superelastic properties were investigated quantitatively. The compositional dependence of martensitic transformation temperature and transformation strain was clarified, and a composition range exhibiting large superelastic recovery strain was established. It has been found that low Young's modulus and high strength can be simultaneously achieved through the control of phase stability and optimization of recrystallization texture.
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