A controlling method of microsegregation based on tie-line shift phenomenon during solidification in multi-component alloys
| Project/Area Number |
25289266
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
Ohno Munekazu 北海道大学, 工学(系)研究科(研究院), 准教授 (30431331)
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| Co-Investigator(Kenkyū-buntansha) |
SHIBUTA Yasushi 東京大学, 大学院工学系研究科, 准教授 (90401124)
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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 |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2013: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
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| Keywords | ミクロ偏析 / フェーズフィールド法 / 分子動力学法 / 凝固工学 / デンドライト / 組織形成 / 凝固 / デンドライト組織 / 偏析 / シミュレーション / 多元系合金 |
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| Outline of Final Research Achievements |
In cast materials, non-uniform distribution of the elements exists on a micro-meter scale, which is called the microsegregation. The microsegregation needs to be precisely controlled for production of cast materials with high quality. In this study, effects of tie-line shift phenomenon involved in multi-component diffusion on the microsegregation were investigated in detail. It was found that the microsegregation of the slow diffusing element can be reduced by utilizing the tie-line shift.
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Report
(4 results)
Research Products
(27 results)
