2013 Fiscal Year Final Research Report
Development of partial modification technology of structures based on visualization of the solid phase flow phenomenon
| Project/Area Number |
24656443
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Material processing/treatments
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MORISADA Yoshiaki 大阪大学, 接合科学研究所, 特任講師 (00416356)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 摩擦攪拌接合 / 三次元可視化 / 部分改質 / 析出強化 / 変態 / X線 |
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| Research Abstract |
A new technology in which the characteristics of a part of a structure are significantly improved by one process, has been developed. In this method, the properties are improved at any place for any materials in a very short period. After manufacturing a large-sized structure using a material with a sufficient formability, arbitrary places can be strengthened with this technique to maintain the mechanical properties of the whole structure.
For "stirring-dispersion", the three-dimensional solid phase flow visualization system has been developed using two X radiation sources in order to directly observe the flow in aluminum and ferrous alloys. Thereby, the defect formation mechanism was clarified and the process was optimized.
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