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Koi, Mamoru*; Maeda, Toshio*; Yamagishi, Ryuichiro*; Shimazu, Tadashi*; Iwai, Hiroki; Tezuka, Masashi
Reiwa-5-Nendo Koeki Zaidan Hojin Wakasawan Enerugi Kenkyu Senta kenkyu Nempo, 26, P. 37, 2024/10
To investigate methods for collecting airborne dust generated during the dismantling of the reactor area of FUGEN using laser cutting, we conducted laser cutting on test specimens simulating reactor structural materials in a large water tank. We acquired data on the behavior of the dust during this process and confirmed the effectiveness of HEPA filters in preventing dust diffusion.
Otani, Hiroshi; Mizui, Hiroyuki; Higashiura, Norikazu; Bando, Fumio*; Endo, Nobuyuki*; Yamagishi, Ryuichiro*; Kume, Kyo*
Heisei-25-Nendo Koeki Zaidan Hojin Wakasawan Enerugi Kenkyu Senta kenkyu Nempo, 16, P. 66, 2014/10
no abstracts in English
Shobu, Takahisa; Tominaga, Aki; Kisohara, Naoyuki; Maeda, Hideo*; Yamagishi, Ryuichiro*; Okihara, Shinichiro*; Tsuboi, Akihiko
no journal, ,
In this study, the internal defects and strain distribution in metal additive manufacturing and their changes by laser peening were evaluated. These studies using X-ray computed tomography and diffraction technique were carried out at BL22XU in synchrotron radiation facility SPring-8. As a result, it was confirmed that a large number of voids existed inside the additive manufacturing. However, almost no difference due to laser peening was confirmed. On the other hand, it was confirmed that the strain inside the additive manufacturing was almost
Shobu, Takahisa; Tominaga, Aki; Kisohara, Naoyuki; Maeda, Hideo*; Yamagishi, Ryuichiro*; Okihara, Shinichiro*; Tsuboi, Akihiko
no journal, ,
In this study, the internal defects and strain distribution in metal additive manufacturing and their changes by laser peening were evaluated. These studies using X-ray computed tomography and diffraction technique were carried out at BL22XU in synchrotron radiation facility SPring-8. As a result, it was confirmed that a large number of voids existed inside the additive manufacturing. However, almost no difference due to laser peening was confirmed. On the other hand, it was confirmed that the strain inside the additive manufacturing was almost uniformly tensile strain, and that it changed to compressive strain near the surface due to laser peening.
Shobu, Takahisa; Tominaga, Aki; Yamagishi, Ryuichiro*
no journal, ,
no abstracts in English