| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2015: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Outline of Final Research Achievements |
The structure of crack tip dislocations in a micro-cantilever specimen were investigated after bending tests. The micro-cantilever was machined in a grain which is in a fully annealed high nitrogen austenitic stainless steel. A notch was introduced at the root of the cantilever by using focused ion beam, then bending load was applied at the edge of the cantilever using s nano-indenter. The state of stress at the notch tip was investigated using finite element method. High-voltage electron microscopy observation revealed dislocation arrays on the slip plane on which the resolved shear stress is the highest, and cross slip of dislocations.
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