Development of aluminum alloys excellent in strength and ductility based on first-principles calculations
| Project/Area Number |
15K21294
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
Material processing/Microstructural control engineering
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
Uesugi Tokuteru 大阪府立大学, 工学(系)研究科(研究院), 准教授 (10405342)
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| Research Collaborator |
TAKIGAWA Yorinobu 大阪府立大学, 大学院工学研究科, 教授 (70382231)
HIGASHI Kenji 大阪府立大学, 大学院工学研究科, 教授 (50173133)
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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 |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 第一原理計算 / Al合金 / 高強度 / 高延性 / 粒界強化 |
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| Outline of Final Research Achievements |
Al-8Mg-0.2Zr alloy has been developed from the first-principles calculations. The aim of this study is achieving high strength and good ductility of Al-8Mg-0.2Zr alloy by work hardening, precipitation strengthening and grain refinement strengthening. As a result, the grain refinement by friction stir processing was effective as a means to achieve high strength and good ductility of Al-8Mg-0.2Zr. The newly developed Al-8Mg-0.2Zr alloy after friction stir processing exhibited high tensile strength of 435 MPa along with the large elongation to failure up to 40 %.
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Report
(4 results)
Research Products
(15 results)
