| Project/Area Number |
15K14109
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical properties of metals/Metal-base materials
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| Research Institution | Shimane University |
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Principal Investigator |
Arakawa Kazuto 島根大学, 総合理工学研究科, 准教授 (30294367)
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| Co-Investigator(Renkei-kenkyūsha) |
TANAKA Nobuo 名古屋大学, エコトピア科学研究所, 教授 (40126876)
KOMATSU Masao 広島工業大学, 工学研究科, 教授 (80309616)
SANO Tomokazu 大阪大学, 工学研究科, 准教授 (30314371)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 転位 / 材料強化 / 鉄鋼 / 電子顕微鏡 |
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| Outline of Final Research Achievements |
It has been recognized that plastic deformation of alpha-iron based materials is governed by dislocations with the Burgers vector of 1/2<111>. In contrast, “high-energy” <100> dislocations have been ignored because of their instability. However, it is expected that alpha-iron based materials can be strengthened by replacement of major dislocations with <100> dislocations.
In the present study, we have aimed at opening up a new strengthening mechanism by <100> dislocations. For this purpose, we explored conditions for introduction of <100> dislocations as major dislocations.
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