| Project/Area Number |
08650821
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural/Functional materials
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| Research Institution | Himeji Institute of Technology |
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Principal Investigator |
OGINO Yoshikiyo Himeji Institute of Technology, Dept.of Materials Sci.and Eng., Prof., 工学部, 教授 (10047574)
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| Co-Investigator(Kenkyū-buntansha) |
YAMASAKI Toru Himeji Institute of Technology, Dept.of Materials Sci.and Eng., Assist.Prof., 工学部, 講師 (30137252)
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| Project Period (FY) |
1996 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1998: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1997: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1996: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | Nanocrystalline alloying / Superplasticity / Mechanical alloying / Copperalloying / ナノ結晶材料 / メカニカルアロイング / 銅合金 / 超塑性 / クリープ |
|---|
| Research Abstract |
Nanocrystalline Cu-Mg-TiC alloys with grain sizes of about 15 nm were prepared by mechanical alloying and tensile tested at temperatures at which partial melting occured. The elongation drastically increased as the melting occured, and maxi- mum elongations of about 200 pct were measured at temperatures where atomic fractions of liquid phase were about 0.5. After the deformation, nanocrytalline structures with average grain sizes of about 30 nm were retained.
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