2011 Fiscal Year Final Research Report
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 |
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| Research Field |
Structural/Functional materials
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| Research Institution | Kyushu University |
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Principal Investigator |
NAKADA Nobuo 九州大学, 工学研究院, 助教 (50380580)
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| Project Period (FY) |
2010 – 2011
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| 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 |
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| 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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