| Project/Area Number |
19206076
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural/Functional materials
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| Research Institution | Osaka City University |
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Principal Investigator |
HASHIMOTO Satoshi Osaka City University, 大学院・工学研究科, 教授 (50127122)
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| Co-Investigator(Kenkyū-buntansha) |
KANEKO Yoshihisa 大阪市立大学, 大学院・工学研究科, 講師 (40283098)
VINOGRADOV Alexei 大阪市立大学, 大学院・工学研究科, 准教授 (10283102)
NAKAMURA Atsutomo 大阪市立大学, 大学院・工学研究科, 講師 (20419675)
宮本 博之 同志社大学, 工学部, 准教授 (10298698)
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| Co-Investigator(Renkei-kenkyūsha) |
MIYAMOTO Hiroyuki 同志社大学, 理工学部, 教授 (10298698)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥50,180,000 (Direct Cost: ¥38,600,000、Indirect Cost: ¥11,580,000)
Fiscal Year 2009: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2008: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2007: ¥37,180,000 (Direct Cost: ¥28,600,000、Indirect Cost: ¥8,580,000)
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| Keywords | 強度 / 靱性 / 破壊 / 疲労 / 応力腐食割れ / ECCI / 繰返し変形 / き裂 / 転位 / 電子顕微鏡 / ECCI法 / 金属疲労 / き裂伝ぱ / 固執すべり帯 / 損傷検査 / 銅 |
|---|
| Research Abstract |
Microstructures of metallic materials fractured under various conditions were analyzed using the electron channelling contrast imaging (ECCI) technique which enables us to observe dislocation in a scanning electron microscope, and the electron backscatter diffraction (EBSD) technique. Based on the microstructure analyses, we developed the method to determine fracture process, and investigated factors which determine crack propagation path and crack initiation site. Fatigue damage of ultrafine-grained materials could also be estimated with these techniques.
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