Development of new shape memory alloys-Alloy design and process-
| Project/Area Number |
20360342
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Metal making engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ISHIDA Kiyohito 東北大学, 大学院・工学研究科, 教育研究支援者 (20151368)
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| Co-Investigator(Renkei-kenkyūsha) |
NANJYO Hiroshi 産業技術総合研究所, コンパクト化学プ, ロセス研究センターチーム長 (90357690)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2009: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2008: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Keywords | 形状記憶合金 / 結晶成長 / 強磁性 / 高温 / 強磁性形状記憶合 / マルテンサイト変態 / 磁歪 / 単結晶 / 強磁性形状記憶合金 |
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| Research Abstract |
Ni-Fe-Ga alloys and Ni-Fe-Ga-Co alloys have been received great attention as ferromagnetic shape memory alloys and high temperature alloys. In this study, the fiber shape single crystals of these alloys were prepared by the micro-pulling-down method. Optimum conditions for the crystal growth and the solidification behavior and physical properties of them were investigated. As the results, the single crystal wires approximately 1-3 mm in diameter and 200 mm in length could be grown by 10 mm/min. pulling-down-rate. The effective distribution coefficient of them approximately unit, suggesting that the macroscopic segregation are very small. The stresstemperature phase diagram shows that the martensitic phase transformation behavior showed the Clausius-Clapeyron relation.
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Report
(4 results)
Research Products
(19 results)
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[Journal Article] Elastic and superelastic properties of NiFeCoGa fiber grown by micro-pulling down method2009
Author(s)
K. Oikawa, R. Saito, K. Anzai, H. Ishikawa, Y. Sutou, T. Omori, A. Yoshikawa, V. A. Chernenko, S. Besseghini, A. Gambardella, R. Kainuma and K. Ishida
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Journal Title
Mater. Trans
Volume: 50
Pages: 934-937
Related Report
Peer Reviewed
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