Examination of new type of grain-refinement process via martensitic microstructure-phase transformation in airplane Ti alloy
| Project/Area Number |
22760551
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Material processing/treatments
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 航空機Ti合金 / マルテンサイト / 相分解 / 組織制御 / チタン合金 / マルテンサイト変態 / 低温熱処理 / 熱間加工 / 強度 / 室温延性 |
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| Research Abstract |
Microstructural evolution during deformation-heat treatment process of martensite microstructure of airplane Ti alloy was evaluated in this work. Refined microstructure is obtained after cold working in α'-Ti-V-Al alloys and high-strengthening is achieved by combining the fine β precipitation under low temperature-heat treatment. Furthermore, homogeneous martensiticmicrostructure is found to be appeared by high speed deformation at more than 900℃ due to high accumulation of dislocations.
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Report
(4 results)
Research Products
(5 results)
