Formation of Al2O3 scale on low-Al heat resistant alloys by increasing aluminum outward diffusion flux
| Project/Area Number |
21360351
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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 |
Material processing/treatments
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SAKAGUCHI Norihito 北海道大学, 大学院・工学研究院, 准教授 (70344489)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2009: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
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| Keywords | 表面・界面制御 / 高温腐食防食 / 高温酸化 / 耐熱合金・コーティング / アップヒル拡散 / アルミナスケール / 相変態 / 高温酸化防食 / 耐熱合金 / 表面改質 / Ni基合金 / コーティング / Al外方拡散フラックス |
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| Research Abstract |
Several Ni-low Al alloys with various metal coatings (-100nm) were oxidized at 1150℃ in air. Among the coating elements used in the present study, a thin Pt coating with the optimized heating treatment promoted the formation of Al_2O_3 scale on the Ni-14at%Al alloy. Al uphill outward diffusion was confirmed to occur after the heat treatment, and this Al outward diffusion was considered to cause the formation of Al_2O_3 scale on the Ni-low Al alloys.
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Report
(4 results)
Research Products
(8 results)
