| Budget Amount *help |
¥45,630,000 (Direct Cost: ¥35,100,000、Indirect Cost: ¥10,530,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2018: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2017: ¥31,980,000 (Direct Cost: ¥24,600,000、Indirect Cost: ¥7,380,000)
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| Outline of Final Research Achievements |
This study aims to elucidate the creep mechanisms of metallic nanostructures and establish the mechanics dominating the creep fracture. We have developed in-situ SEM and TEM creep experiment methods for nanoscale specimens. Creep experiments were performed on nanoscale Au and Al single crystals. The results indicated that the size effect "smaller is stronger" is present in the creep properties, that the creep resistance is improved by introducing the nanoscale dislocation loops, and that the creep strength is weakened by the presence of notch.
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