| Project/Area Number |
26630013
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Keio University |
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Principal Investigator |
KOMOTORI Jun 慶應義塾大学, 理工学部, 教授 (30225586)
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| Co-Investigator(Kenkyū-buntansha) |
MURAI Kazue 慶應義塾大学, 理工学部, 助教 (70645944)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 微粒子ピーニング / 高周波誘導加熱 / 表面改質 / 金属間化合物 |
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| Outline of Final Research Achievements |
To form a Ni-Al intermetallic compound layer on a carbon steel surface, AIH-FPP was carried out at 900℃ in argon atmosphere with a Ni and Al particle milled by means of planetary ball mills. The treated surface was analyzed using SEM, EDX and an XRD. Oxidation test was carried out at 900℃ for 100 hours. Results showed that the Ni-Al intermetallic compound layer with a thickness of 200 μm was formed in the case of the specimen treated by the aluminum rich shot particles; the ratio of Ni to Al was 1 to 4 at.%. This was because (i) melted Al particles reduced the melting point of Ni particles and Fe substrate, and (ii) partially melted area promoted a combustion synthesis reaction between Ni and Al, resulting in forming the Ni-Al intermetallic compound layer. The AIH-FPP treated surface showed a higher oxidation resistance than that of the un-treated specimen. This was because Al2O3 continually created from the Ni-Al intermetallic compound layer protected the steel substrate.
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