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Taira Okita
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Proceedings Papers

Effects of Carbide Precipitate Formation on the Change in Ultrasonic Velocity in Austenitic Stainless Steels

Taira Okita, Junji Etoh, Mitsuyuki Sagisaka, Takashi Matsunaga, Yoshihiro Isobe
Proc. ASME. ICONE22, Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Plant Systems, Structures and Components; Codes, Standards, Licensing and Regulatory Issues, V001T02A019, July 7–11, 2014
Paper No: ICONE22-30859
DOI: https://doi.org/10.1115/ICONE22-30859
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Topics: Stainless steel, Annealing, Carbon, Grain boundaries, Precipitation, Temperature, Ultrasonic testing
Proceedings Papers

Ultrasonic NDE for Irradiation-Induced Material Degradations

Yoshihiro Isobe, Junji Etoh, Mitsuyuki Sagisaka, Takashi Matsunaga, Paula Freyer, Frank Garner, Taira Okita
Proc. ASME. ICONE21, Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Radiation Protection and Nuclear Technology Applications, V001T02A048, July 29–August 2, 2013
Paper No: ICONE21-16850
DOI: https://doi.org/10.1115/ICONE21-16850
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Topics: Irradiation (Radiation exposure), Materials degradation, Nondestructive evaluation, Ultrasonic waves, Dislocations, Grain boundaries, Signals, Stainless steel
Proceedings Papers

The Experimental Approach to Observe Atomistic Behaviors of Metallic Surfaces by a Linked Facility Between an Ion Accelerator and a STM

Junichi Hirabayashi, Motohiro Sato, Kenta Murakami, Taira Okita
Proc. ASME. ICONE21, Volume 6: Beyond Design Basis Events; Student Paper Competition, V006T16A039, July 29–August 2, 2013
Paper No: ICONE21-16425
DOI: https://doi.org/10.1115/ICONE21-16425
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Topics: Metal surfaces, Atoms, Irradiation (Radiation exposure), Nuclear power stations, Resolution (Optics), Scanning tunneling microscopy
Proceedings Papers

Fundamental Study to Evaluate Mechanical Property Change Associated to Dislocation Behavior in Irradiated Austenitic Stainless Steels by Incorporating Thermal Fluctuations

Keisuke Asari, Satoshi Miyashiro, Mitsuhiro Itakura, Taira Okita
Proc. ASME. ICONE21, Volume 6: Beyond Design Basis Events; Student Paper Competition, V006T16A040, July 29–August 2, 2013
Paper No: ICONE21-16428
DOI: https://doi.org/10.1115/ICONE21-16428
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Topics: Dislocations, Fluctuations (Physics), Mechanical properties, Stainless steel, Metals, Vibration, Irradiation (Radiation exposure), Molecular dynamics simulation, Separation (Technology), Temperature
Proceedings Papers

Molecular Dynamics Simulations to Evaluate the Effect of Applied Strain on Interstitial Cluster Formation and Orientation Under Collision Cascade Damage

Satoshi Miyashiro, Satoshi Fujita, Mitsuhiro Itakura, Taira Okita
Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 419-423, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54777
DOI: https://doi.org/10.1115/ICONE20-POWER2012-54777
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Topics: Cascades (Fluid dynamics), Collisions (Physics), Damage, Molecular dynamics simulation, Probability, Simulation, Molecular dynamics
Proceedings Papers

Molecular Dynamics Simulations to Evaluate the Effect of the Difference in Material Properties on Irradiation-Induced Defect Formation Under Applied Strain

Toshihiro Horinouchi, Satoshi Miyashiro, Mitsuhiro Itakura, Taira Okita
Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 443-446, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54840
DOI: https://doi.org/10.1115/ICONE20-POWER2012-54840
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Topics: Cascades (Fluid dynamics), Irradiation (Radiation exposure), Materials properties, Metals, Molecular dynamics, Molecular dynamics simulation
Proceedings Papers

Observations of Irradiation-Induced Defect Formation on Si (111) Surface by a Linked Facility Between an Ion Accelerator and STM

Motohiro Sato, Tairo Kikuchi, Kenta Murakami, Satoshi Miyashiro, Taira Okita
Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 517-520, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-55025
DOI: https://doi.org/10.1115/ICONE20-POWER2012-55025
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Topics: Cascades (Fluid dynamics), Collisions (Physics), Damage, Density, Displacement, Ions, Irradiation (Radiation exposure), Particulate matter
Proceedings Papers

Development of Electrical Resistivity Measurement Systems for Inspecting Void Swelling in Irradiated Microscopy Discs

Mitsuyuki Sagisaka, Yoshihiro Isobe, Frank Garner, Satoshi Fujita, Taira Okita
Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 5, 223-228, May 17–21, 2010
Paper No: ICONE18-29893
DOI: https://doi.org/10.1115/ICONE18-29893
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Topics: Disks, Electrical resistivity, Measurement systems, Microscopy, Radiation (Physics), Alloys, Carbon, Precipitation, Test facilities, Titanium