| Project/Area Number |
25630262
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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 |
Physical properties of metals/Metal-base materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
INOUE Junya 東京大学, 工学(系)研究科(研究院), 准教授 (70312973)
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| Co-Investigator(Kenkyū-buntansha) |
OJIMA Mayumi 東京大学, 大学院工学系研究科, 助教 (80569799)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 鋼ラスマルテンサイト / マルテンサイト / 塑性変形 / 異方性 / 転位セル / ラスマルテンサイト / 変形機構 / 加工硬化特性 / 固溶炭素 |
|---|
| Outline of Final Research Achievements |
Development of new generation advanced high strength steel is widely conducted to achieve a tensile strength more than 1.5GPa and fracture elongation more than 20% at the same time. In this study, the deformation behavior of lath martensite of low carbon steel is investigated from both macroscopic and microscopic points of view. For the macro-level, stress partition measurement by synchrotron white X-ray was employed, while for the micro-level slip system analysis by SEM-EBSD measurement was applied. The results indicate that the local deformation of lath martensite is substantially influenced by the anisotropic activation of slip system.
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