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Proceedings Papers

Reliability of Water Jet Peening as Residual Stress Mitigation

Yusuke Kono, Koji Okimura, Masakazu Tajima, Masaki Noda
Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A102, July 20–24, 2014
Paper No: PVP2014-29060
DOI: https://doi.org/10.1115/PVP2014-29060
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Topics: Reliability, Shot peening, Stress, Water, Alloys, Compressive stress, Countermeasures, Instrumentation, Lasers, Metals
Proceedings Papers

Advancement of Lining Inspection Technology Inside Seawater Piping

Yusuke Kono, Koji Okimura, Akio Minamiyama, Masaki Noda
Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A103, July 20–24, 2014
Paper No: PVP2014-29062
DOI: https://doi.org/10.1115/PVP2014-29062
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Topics: Inspection, Linings (Textiles), Pipes, Seawater, Fracture (Materials), Cooling, Corrosion, Damage, Diesel generators, Emergencies
Proceedings Papers

Reliability of Water Jet Peening as Residual Stress Improvement

Yusuke Kono, Koji Okimura, Rebecca Toth, Tomonobu Sato, Masakazu Tajima, Cecile Jardin, Philippe Le-Bec
Proc. ASME. PVP2013, Volume 1B: Codes and Standards, V01BT01A051, July 14–18, 2013
Paper No: PVP2013-97405
DOI: https://doi.org/10.1115/PVP2013-97405
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Topics: Reliability, Shot peening, Stress, Water, Alloys, Compressive stress, Countermeasures, Instrumentation, Lasers, Metals
Proceedings Papers

Reliability of Water Jet Peening for Alloy 600 PWSCC Mitigation

Koji Okimura, Noriaki Sugimoto, Harutaka Suzuki
Proc. ASME. PVP2012, Volume 1: Codes and Standards, 711-717, July 15–19, 2012
Paper No: PVP2012-78468
DOI: https://doi.org/10.1115/PVP2012-78468
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Topics: Alloys, Reliability, Shot peening, Water, Stress, Compressive stress, Countermeasures, Instrumentation, Lasers, Metals
Proceedings Papers

Application of L-SIP to Pressurizer Nozzles

Masaru Watanabe, Takeshi Ueda, Koji Okimura, Kazuhiro Wakabayashi, Takashi Akaba, Kazuhiko Kamo, Takahiro Ohta, Shohei Nakama, Hiroyuki Kobayashi
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 933-940, July 17–21, 2011
Paper No: PVP2011-57496
DOI: https://doi.org/10.1115/PVP2011-57496
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Topics: Nozzles, Cooling, Stress, Pipes, Safety, Sprays, Surges, Water, Countermeasures, High power lasers
Proceedings Papers

Reliability of Water Jet Peening as Residual Stress Improvement Method for Alloy 600 PWSCC Mitigation

Koji Okimura, Takao Konno, Marekazu Narita, Takahiro Ohta, Masahiko Toyoda
Proc. ASME. ICONE16, Volume 1: Plant Operations, Maintenance, Installations and Life Cycle; Component Reliability and Materials Issues; Advanced Applications of Nuclear Technology; Codes, Standards, Licensing and Regulatory Issues, 565-570, May 11–15, 2008
Paper No: ICONE16-48375
DOI: https://doi.org/10.1115/ICONE16-48375
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Topics: Alloys, Reliability, Shot peening, Stress, Water, Compressive stress, Countermeasures, Instrumentation, Lasers, Metals
Proceedings Papers

PWSCC of Nickel Base Alloys in Vapor Phase Environment of Pressurizer

Takao Tsuruta, Kenji Sato, Seiji Asada, Takaaki Kobayashi, Koji Okimura, Nariyasu Matsubara
Proc. ASME. ICONE16, Volume 1: Plant Operations, Maintenance, Installations and Life Cycle; Component Reliability and Materials Issues; Advanced Applications of Nuclear Technology; Codes, Standards, Licensing and Regulatory Issues, 571-573, May 11–15, 2008
Paper No: ICONE16-48377
DOI: https://doi.org/10.1115/ICONE16-48377
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Topics: Alloys, Nickel, Vapors, Liquid films, Water, Chemistry, Metals, Crack propagation, Fracture (Materials), Pressurized water reactors
Proceedings Papers

Application of Outer Surface Irradiated Laser Stress Improvement Process (L-SIP) to Pressurizer as Residual Stress Improvement Method for Alloy 600 PWSCC Mitigation

Takeshi Ueda, Koji Okimura, Kazuhiro Wakabayashi, Takashi Akaba, Kazuhiko Kamo, Takahiro Ohta
Proc. ASME. ICONE16, Volume 1: Plant Operations, Maintenance, Installations and Life Cycle; Component Reliability and Materials Issues; Advanced Applications of Nuclear Technology; Codes, Standards, Licensing and Regulatory Issues, 575-579, May 11–15, 2008
Paper No: ICONE16-48379
DOI: https://doi.org/10.1115/ICONE16-48379
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Topics: Alloys, Lasers, Stress, Pipes, Steel, Welded joints, Compressive stress, Countermeasures, Laser beams, Nozzles
Proceedings Papers

Development of Outer Surface Irradiated Laser Stress Improvement Process (L-SIP)

Noriaki Sugimoto, Hironori Onitsuka, Koji Okimura, Takahiro Ohta, Kazuhiko Kamo
Proc. ASME. ICONE14, Volume 1: Plant Operations, Maintenance and Life Cycle; Component Reliability and Materials Issues; Codes, Standards, Licensing and Regulatory Issues; Fuel Cycle and High Level Waste Management, 175-178, July 17–20, 2006
Paper No: ICONE14-89375
DOI: https://doi.org/10.1115/ICONE14-89375
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Topics: Lasers, Pipes, Stress