| File | |
| language |
eng
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| Author |
Sano, Tomokazu
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
Eimura, Takayuki
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
Kashiwabara, Ryota
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
Matsuda, Tomoki
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
Isshiki, Yutaro
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
Hirose, Akio
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
Tsutsumi, Seiichiro
Joining and Welding Research Institute, Osaka University
Arakawa, Kazuto
Interdisciplinary Faculty of Science and Engineering, Shimane University
Hashimoto, Tadafumi
Hashimoto Iron Works Co., Ltd.
Masaki, Kiyotaka
National Institute of Technology, Okinawa College
Sano, Yuji
Power and Industrial Systems Research and Development Center, Toshiba Corporation
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| Description | The authors have successfully performed femtosecond laser peening on a 2024 aluminum alloy without any sacrificial overlays. Laser pulses were directly irradiated to the surface of specimens in the air without water film as a plasma confinement medium during the peening treatment. The fatigue life was improved as much as 38 times in comparison with base material at a stress amplitude of 195 MPa. The fatigue strength of the peened specimen after 2 × 10^6 cycles was 58 MPa larger than that of the base material. The femtosecond laser peening process has a great potential to be applied in various fields where conventional peening methods cannot be used, as this process can be performed under ambient conditions without the use of a plasma confinement medium such as water or transparent materials.
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| Subject | femtosecond laser peening
femtosecond laser-driven shock wave
laser peening
atmospheric conditions
sacrificial overlay
2024 aluminum alloy
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| Journal Title |
Journal of Laser Applications
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| Volume | 29
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| Issue | 1
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| Start Page | 012005-1
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| End Page | 012005-7
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| ISSN | 1042346X
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| Published Date | 2017-02
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| DOI | |
| NCID | AA11040115
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| Publisher | Laser Institute of America
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| NII Type |
Journal Article
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| Format |
PDF
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| Rights | © 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). [http://dx.doi.org/10.2351/1.4967013]
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| Text Version |
出版社版
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| Gyoseki ID | e31574
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| OAI-PMH Set |
Interdisciplinary Graduate School of Science and Engineering
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