2011 Fiscal Year Final Research Report
Evaluation of crack propagation behavior based on stress mapping within grains by synchrotron microbeam
| Project/Area Number |
22656034
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Meijo University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KIMACHI Hirohisa 名城大学, 理工学部, 教授 (30324453)
SHOBU Takahisa 日本原子力研究開発機構, 量子ビーム応用研究部門, 研究副主幹 (90425562)
SUZUKI Kenji 新潟大学, 人文社会教育科学系, 教授 (30154537)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 放射光 / ひずみマッピング / 2次元検出器 / き裂 / 結晶方位 |
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| Research Abstract |
Fundamental equations are derived for the stress measurement in single crystals using monochromatic X-rays and white X-rays. Two-dimension detectors are necessary for measurements with high precision. A two-dimensional detector, PILATUS, was confirmed to be usable for stress measurement using synchrotron X-rays. Stress values measured in each grain around SCC and fatigue cracks in nickel-base alloy have large variation, and was expected to have a big influence on the propagation behavior of grain-size order cracks.
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