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Yoshiaki Murakami
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Proceedings Papers

Collapse Resistance Under Combined External Pressure and Bending Deformation of Coated Linepipe

Takahiro Sakimoto, Hisakazu Tajika, Tsunehisa Handa, Yoshiaki Murakami, Satoshi Igi, Joe Kondo
Proc. ASME. OMAE2020, Volume 3: Materials Technology, V003T03A004, August 3–7, 2020
Paper No: OMAE2020-18250
DOI: https://doi.org/10.1115/OMAE2020-18250
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Topics: Collapse, Deformation, External pressure, Pipes, Yield strength, Cycles, Thermodynamic cycles, Water, Heating, Stress
Proceedings Papers

Effect of Tensile Pre-Strain on Collapse Pressure of Coated Linepipe

Takahiro Sakimoto, Tsunehisa Handa, Hisakazu Tajika, Yoshiaki Murakami, Joe Kondo
Proc. ASME. OMAE2019, Volume 4: Materials Technology, V004T03A005, June 9–14, 2019
Paper No: OMAE2019-95923
DOI: https://doi.org/10.1115/OMAE2019-95923
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Topics: Collapse, Pressure, Yield strength, Pipes, Cycles, Thermodynamic cycles, Coating processes, Stress, Water, Anticorrosion coatings
Proceedings Papers

Evaluation of the Internal Hydrogen-Induced Threshold Stress Intensity Factor in 2.25Cr-1Mo Steels Determined by the Offset Potential Drop Method

Shinji Konosu, Takehiro Inoue, Yoshiaki Murakami
Proc. ASME. PVP2017, Volume 6B: Materials and Fabrication, V06BT06A037, July 16–20, 2017
Paper No: PVP2017-65505
DOI: https://doi.org/10.1115/PVP2017-65505
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Topics: Hydrogen, Steel, Stress, Fracture (Materials), Hydrogen embrittlement, ASTM International, Displacement, Pressure vessels, Tension
Proceedings Papers

A Study of Deformation Behavior of Double Jointing Girth Welds

Tomoyuki Yokota, Yoshiaki Murakami, Takahiro Sakimoto, Igi Satoshi, Shigeru Endo
Proc. ASME. IPC2012, Volume 4: Pipelining in Northern and Offshore Environments; Strain-Based Design; Risk and Reliability; Standards and Regulations, 329-335, September 24–28, 2012
Paper No: IPC2012-90555
DOI: https://doi.org/10.1115/IPC2012-90555
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Topics: Deformation, Welded joints, Elongation, Design, Metals, Gas metal arc welding, Pipes, Welding, American Petroleum Institute, Arc welding
Proceedings Papers

Development of Heavy Wall High-Strength UOE Linepipe by Means of Microstructural Control in Base Metal and Seam Weld

Atsushi Ishigami, Yoshiaki Murakami, Naoya Hayakawa, Akihiko Tanizawa
Proc. ASME. OMAE2011, Volume 3: Materials Technology; Jan Vugts Symposium on Design Methodology of Offshore Structures; Jo Pinkster Symposium on Second Order Wave Drift Forces on Floating Structures; Johan Wichers Symposium on Mooring of Floating Structures in Waves, 639-647, June 19–24, 2011
Paper No: OMAE2011-50312
DOI: https://doi.org/10.1115/OMAE2011-50312
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Topics: Alloys, Arc welding, Base metals, Cold climates, Fracture toughness, Grain size, Heat, Low temperature, Manufacturing, Mechanical properties
Proceedings Papers

The Practical Application of 36% Ni Steel Piping in LNG Plants

Eiichi Yamamoto, Kentaro Sakata, Nobutaka Seo, Kazushi Enuma, Seiichi Uchino, Yoshiaki Murakami, Toshifumi Kojima
Proc. ASME. PVP2004, Storage Tank Integrity and Materials Evaluation, 129-139, July 25–29, 2004
Paper No: PVP2004-3063
DOI: https://doi.org/10.1115/PVP2004-3063
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Topics: Liquefied natural gas, Nickel steel, Pipes, Welding, Stainless steel, Tunnels, Corrosion resistance, Cracking (Materials), Fracture (Process), Fracture toughness