| ○種別 (必須): | □ | 学術論文 (審査論文)
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| ○言語 (必須): | □ | 日本語
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| ○審査 (推奨): | □ | Peer Review
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| ○カテゴリ (推奨): | □ | 研究
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| ○組織 (推奨): | 1. | 徳島大学.工学部.機械工学科.生産システム講座 (〜2023年3月31日)
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| ○著者 (必須): | 1. | 日下 一也 ([徳島大学.大学院社会産業理工学研究部.理工学域.機械科学系.生産工学分野]/[徳島大学.理工学部.理工学科.機械科学コース.生産工学講座])
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| 2. | (英) Tanaka Takeshi (日) 田中 剛 (読) たなか たけし
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| 3. | 英 崇夫
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| ○題名 (必須): | □ | (英) Effect of Laser Power Density and Scanning Speed on Residual Stress in Laser-Peened Aluminum Alloy (日) レーザピーニング処理したアルミニウム合金の残留応力のレーザパワー密度および走査速度依存性
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| ○要約 (任意): | □ | (英) Laser peening has recently been developed as a surface modification technique. When a high-energy laser pulse irradiates a material surface submerged in water, high-pressure plasma is generated immediately on the surface. The plasma induces an impulse wave that penetrates into the surface layer. In the present study, a laser beam of diameter about 10mm is converged by the converging lens with focal length of 250mm, and irradiates the aluminum surface. The second harmonic generation of Yttrium-Aluminum-Garnet (YAG) laser was used at a pulse frequency of 10 Hz. The effect of laser power density and scanning speed on residual stress in the laser peened aluminum alloy surface was investigated by X-ray diffraction. The following results were obtained : (1) compressive residual stress was induced in the surface of all samples ; (2) many fused traces and many micro-cracks were formed in laser peened aluminum surface ; (3) for the series of experiments with the fixed scanning speed of 2.0mm/s, the maximum compressive residual stress was induced at the laser power density of 31MW/mm^2; and (4) for the fixed laser power density of 61 MW/mm^2, that was induced at scanning speed of 1.0mm/s. (日)
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| ○キーワード (推奨): | 1. | (英) Laser peening (日) レーザピーニング (読)
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| 2. | (英) Surface modification (日) 表面改質 (読)
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| 3. | (英) Plus laser (日) パルスレーザ (読)
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| 4. | (英) Residual stress (日) 残留応力 (読)
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| 5. | (英) X-ray diffraction (日) X線回折 (読)
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| 6. | (英) Laser power density (日) レーザパワー密度 (読)
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| 7. | (英) Scanning speed (日) 走査速度 (読)
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| ○発行所 (推奨): | □ | 日本材料学会
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| ○誌名 (必須): | □ | 材料 ([日本材料学会])
(pISSN: 0514-5163, eISSN: 1880-7488)
| ○ISSN (任意): | □ | 0514-5163
ISSN: 0514-5163
(pISSN: 0514-5163, eISSN: 1880-7488) Title: 材料Supplier: 社団法人日本材料学会Publisher: Society of Materials Science Japan (Webcat Plus)
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| ○巻 (必須): | □ | 54
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| ○号 (必須): | □ | 7
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| ○頁 (必須): | □ | 672 678
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| ○都市 (任意): | □ | 京都 (Kyoto/[日本国])
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| ○年月日 (必須): | □ | 西暦 2005年 7月 15日 (平成 17年 7月 15日)
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| ○URL (任意): | □ | http://www.jsms.jp/kaishi/54/paper54-7-1.htm
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| ○DOI (任意): | □ | 10.2472/jsms.54.672 (→Scopusで検索)
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| ○CRID (任意): | □ | 1390001205418449792
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| ○NAID : | □ | 110006266558
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