Imaging of Fatigue Cracks in Aluminum Alloy by Micro Computed Tomography with Synchrotron Radiation
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- SANO Yuji
- Power and Industrial Systems Res. and Dept. Center, Toshiba Corporation
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- MASAKI Kiyotaka
- Dept. of Mech. Systems Eng., Okinawa National College of Tech.
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- OCHI Yasuo
- Dept. of Mech. Eng. and Intelligent Systems, Univ. of Electro-Communications
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- AKITA Koichi
- Dept. of Mech. Systems Eng., Musashi Inst. of Tech.
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- KAJIWARA Kentaro
- Japan Synchrotron Radiation Res. Inst.
Bibliographic Information
- Other Title
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- 放射光を使用したマイクロCTによるアルミニウム合金疲労き裂の可視化
- ホウシャコウ オ シヨウシタ マイクロ CT ニ ヨル アルミニウム ゴウキン ヒロウ キレツ ノ カシカ
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Abstract
The authors have applied micro computed tomography (μCT) with synchrotron radiation of SPring-8 to imaging of fatigue cracks in cast aluminum alloy AC4CH. Theoretical evaluation showed that the edge of a sample apart from an X-ray detector was enhanced in the radiographic image due to the refraction of X-rays. The edge enhancement was confirmed with 28keV monochromatic X-ray under the arrangement where the detector was set behind the sample by 800mm. The enhancement also appeared on the tomographic image reconstructed by FBP (filtered back projection) algorithm. The fatigue cracks were clearly observed in both reconstructed images of laser-peened and unpeened samples. The crack image of the unpeened sample was evidently larger than that of the laser-peened sample, which implies that laser peening retarded the fatigue crack propagation.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 57 (4), 395-400, 2008
The Society of Materials Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282680396617472
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- NII Article ID
- 130002085682
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- NII Book ID
- AN00096175
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- COI
- 1:CAS:528:DC%2BD1cXmtFOqsbs%3D
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 9478034
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed