| Project/Area Number |
25420774
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Material processing/Microstructural control engineering
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| Research Institution | Tokyo University of Technology (2014-2015)
University of Toyama (2013) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
AIDA Tetsuo 富山大学, 大学院理工学研究部(工学), 准教授 (20283062)
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| Research Collaborator |
Langdon Terence G. サウザンプトン大学, 工学環境研究分野, 教授
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | ねじり戻し調製法 / 結晶ランダム化 / 結晶微細化 / マグネシウム合金ねじ / 室温転造 / 時効硬化 / ねじり戻し調製 / ランダム結晶 / 結晶粒微細化 / 室温ねじ転造 |
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| Outline of Final Research Achievements |
The crystal orientation of AZ31B and AZ91D magnesium alloy was randomized by torsion working. It was succeed that high quality M8 screw was fabricated by the optimum back-torsion working preliminary thread rolling at room temperature. The distribution of hardness in as thread-rolled AZ91D magnesium alloy screw was modified to uniform distribution by the isothermal aging treatment at 423K for 460.8ks.
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