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Papers and Theses

Journals and Conferences

Journals

  1. Nariaki SAKABA, Shimpei HAMAMOTO and Yoichi TAKEDA
    Helium Chemistry for Very High Temperature Reactors
    Journal of Nuclear Science and Technology, 47, 3 (2010) , 269-277.
  2. Y. Takeda, T. Shoji, M. Bojinov, P. Kinnunen, T. Saario
    "In situ and Ex situ Characterisation of Oxide Film Formed on Strained Stainless Steel Surface in High-temperature Water"
    Applied Surface Science, 252 (2006) pp.8580–8588.
  3. Yoichi Takeda, Hiroyuki Yamauchi, Qunjia Peng, Tetsuo Shoji
    "Effect of Grain Boundary Microchemistry on IGSCC of Alloy 132 in a Simulated BWR Environment"
    Key Engineering Materials, Advances in Fracture and Strength, Vols. 297-300, (2005) pp.986-992.

International Conference Proceedings

  1. Yoichi Takeda, Takayuki Sato, Daisuke Yamauchi, Tetsuo Shoji, Akio Ohji
    Non-linear Dynamics of Oxide / Metal Interface Morphology of Austenitic Stainless Steels in Simulated BWR water and Its Implication to SCC Initiation
    Proceedings of the 15th International Conference on ENVIRONMENTAL DEGRADATION of Materials in Nuclear Power Systems-Water Reactors
    August 7-11 2011, Cheyenne Mountain Resort Colorado Springs, Colorado, USA
  2. Yoichi Takeda, Hirofumi Sato, Shuhei Yamamoto, Takamichi Tokunaga, Akio Ohji
    Evaluation of Crack Growth behavior of Alloy 625 Under Cyclic Loading in a Steam Environment at 750C
    ASME POWER 2011
    July 11-14, 2011, Denver, Colorado, USA Paper No. POWER2011-55471
  3. Akio Ohji
    EVALUATION OF THERMAL PERFORMANCE ANALYSIS ON KALINA CYCLE TO BE USED FOR PRODUCTION OF ELECTRIC POWER FROM LOW POTENTIAL GEOTHRMAL ENERGY
    Int’l Symposium on Low Carbon & Renewable Energy Technology ISLCT 2010
    November 15-18,2010, Jeju, KOREA, Abstract Book 0-GE-005 p211
  4. Y. Takeda, Z. Lu, T. Adachi, Q. Peng, J. Kuniya, T. Shoji
    INFLUENCING FACTORS FOR IMPROVING ACCURACY IN PREDICTION OF STRESS CORROSION CRACK GROWTH RATE IN BOILING WATER REACTOR OPERATIONAL CONDITION -1 PREDICTION OF SCC GROWTH RATE IN TERMS OF VICKERS HARDNESS
    Proceedings of the ASME 2010 Pressure Vessels & Piping Division / K-PVP Conference (PVP2010)
    July 18-22, 2010 • Bellevue, Washington, USA, CD-ROM, Paper No. PVP2010-26135
  5. Yoichi Takeda
    Development of Raman Spectroscopy Analysis Technique for the Oxides Forming on Hastelloy-XR at Elevated Temperatures in Coolant Helium
    20th International Conference on Structural Mechanics in Reactor Technology (SMiRT 20)
    Espoo, Finland, August 9-14, 2009, SMiRT 20-Division TS1-2, Paper 1743
  6. Nariaki Sakaba, Shimpei Hamamoto, Yoichi Takeda
    "ACTIVE CHEMISTRY CONTROL FOR COOLANT HELIUM APPLYING HIGH-TEMPERATURE GAS-COOLED REACTORS"
    Proceedings of the 4th International Topical Meeting on High Temperature Reactor Technology, HTR2008
    September 28 – October 1, 2008, Washington, D.C., USA, Paper No. HTR2008-58096
  7. Yoichi Takeda, Shimpei Hamamoto, Nariaki Sakaba
    "R&D of Lifetime Extension for Primary Materials by Active Chemistry Control for Coolant Helium:Corrosion Tests of Heat Resistant Alloy"
    ANS/ENS International Winter Meeting, November 11-15, 2007, Washington, DC, USA
  8. Nariaki Sakaba, Shimpei Hamamoto, Yoichi Takeda
    "R&D of Lifetime Extension for Primary Materials by Active Chemistry Control for Coolant Helium:A Study of Chemical Equilibrium in the HTGR Core"
    ANS/ENS International Winter Meeting, November 11-15, 2007, Washington, DC, USA
  9. Yoichi TAKEDA, Masataka KANAYA, Shuhei YAMAMOTO, Akio OHJI
    "Oxidation and Cracking Behavior of Nickel Base Superalloys Under Bending Stress in Advanced Steam Condition Beyond 700°C"
    International Conference on Power Engineering-2007 (ICOPE-2007), October 23-27, 2007, Hangzhou, China, Paper No. E072. (Chinese Society of Power Engineering, JSME, ASME)

International Conference Oral Presentations

  1. Yoichi Takeda
    "Experimental Investigation of Deformation/Oxidation Interactions During Stress Corrosion Cracking in Simulated Light Water Reactor Environments"
    MIT-Tohoku "21COE" Joint Workshop on Mechanical Science based on Nanotechnology, March 12, 2008, Boston
  2. Yoichi Takeda, Shimpei Hamamoto, Nariaki Sakaba
    "High temperature corrosion behavior of Nickel-base heat resistant alloy under various oxygen partial pressure and carbon activities"
    JSPS-KOSEF Core University Program Joint Seminar CUP-S-07-2-4 on Environmental Assisted Cracking, January 21, 2008, Sendai
  3. Y. Takeda
    "Application of Raman Spectroscopy Analysis for the Oxides Formed on Hastelloy-XR in High Temperature Helium Environment at 950°C"
    The 1st International Conference CORROSION and Material Protection&10th Conference AKI 2007, October 1 - 4, 2007, Czech Republic, Prague
    (Czech Association of Corrosion Engineers, European Federation of Corrosion, Institute for Corrosion Research and Material Protection)
  4. Yosuke Nakada, Toshiro Nagai, Tsukasa Ookubo, Yoshinobu Nakao, Yoichi Takeda, Akio Ohji
    "Development of Thermodynamics Performance Analysis Simulator for Geothermal Power Plant and the Evaluation of the Plant Operational Characteristics"
    First European Geothermal Review -Geothermal Energy for Electric Power Production-, October 29 - 31, 2007, Mainz, Germany (BESTEC GmbH)
  5. Yoichi Takeda
    Development of In-situ Evaluation Technique for High Temperature Oxidation of Nickel-base Heat Resistant Alloys in Simulated VHTR Helium Environment
    "R&D plan for the development of life time evaluation method based on interfacial reaction kinetics"
    JSPS-KOSEF CUP Joint Seminar between CUP-S-06-2-4 on Environmental Assisted Cracking And S-06-4-2 on Innovative Nuclear Materials R&D, February 11-14, 2007, Iwate
  6. M. Kanaya, Y. Takeda, A. Ohji
    "Influence of Steam on Oxidation and Cracking Behaviors of a Nickel Base Superalloy Under Bending Stress in High Temperature Environments"
    Xiamen – Tohoku Joint International Symposium, Oct. 26-27, 2006, Xiamen, China.