| Budget Amount *help |
¥75,270,000 (Direct Cost: ¥57,900,000、Indirect Cost: ¥17,370,000)
Fiscal Year 2015: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Fiscal Year 2014: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
Fiscal Year 2013: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2012: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2011: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
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| Outline of Final Research Achievements |
To reveal the origin of the superior mechanical properties of magnesium alloys with syncronized long-period-stacking-ordered (LPSO) structure, the temporal behavior of kink deformation bands are studied. We have developed theoretical and computational models based on disclination and instability, and have showed a full compatibility condition for an ideal kink deformation in the framework of finite deformation theory. Moreover, microstructures of kink boundaries of LPSO phases of Mg-Zn-Y alloy
have been observed. We have examined the characteristics for a variety of kink boundaries using a field-emission transmission electron microscope (TEM), high-angle annular dark-field (HAADF) scanning transmission electron microscope (STEM) and related equipment. The experimental result has showed that the kink boundaries consist of a large number of dislocation array and it agrees well with the theoretical prediction based on disclination model.
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