The proposal for the next-generation microstructural control technique of steel by using ultra-fine lath austenitic starting structure
Project/Area Number |
22686065
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Structural/Functional materials
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Research Institution | Kyushu University |
Principal Investigator |
NAKADA Nobuo 九州大学, 工学研究院, 助教 (50380580)
|
Project Period (FY) |
2010 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2011: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
|
Keywords | 鉄鋼材料 / 超微細粒 / 相変態 / 組織制御 / マルテンサイト変態 |
Research Abstract |
For the production of fine-grained structural steel, the microstructural characteristics of lath austenite formed by martensitic reversion and the microstructure transformed from it were investigated. As a result, it was confirmed in a model steel that the lath austenite has fine lath structure containing high-density dislocations. In addition, it was suggested that martensitic reversion takes place even in a low alloyed steel under the specific condition controlled by alloy designing and heat treatment.
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Report
(3 results)
Research Products
(4 results)