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The Degradation Evaluation of Reactor Pressure Vessel Materials due to Neutron Irradiation by Ultrasonic Characteristic Analysis

SamLai Lee, KeeOk Chang, ByoungChul Kim, KwunJae Choi, UnSik Gong
Korea Atomic Energy Research Institute, 150Dukjindong, Yusonggu, Taejon, Korea.
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ABSTRACT

INTRODUCTION

THEORETICAL BACKGROUND

EXPERIMENT

RESULT AND DISCUSSION

CONCLUSIONS

REFERENCES

  1. Alers, G. A., and Ray Santoyo 1999, 'Shear Wave Velocity Response to Copper Precipitate and Neutron Irradiation' in Workshop on Nondestructive Characterization of Embrittlement in Reactor Pressure Vessel Steels Chapter 19, National Institute of Standards and Technology, United States Department of Commerce.
  2. Astafev, A. A., et. al. 1977, Atomnaya Energiya 42, pp.187-193.
  3. Cohen, Y. B., and Mal, A. K. 1989, 'Ultrasonic Inspection' in Metals Handbook 17 , Nondestructive Evaluation and Quality Control, ASM International, Metals Park, pp.231-277.
  4. Final Report for the 3rd Surveillance Test on the Reactor Pressure Vessel Material 1996.
  5. C. M. Fortunko, G. L. Peterson and B. B. Chick, M. C. Renken and A. L. Preis 1992, 'Absolute Measurements of Elastic-Wave Phase and Group Velocities in Lossy materials', Rev. Sci. Instrum., Vol.63, No.6, pp3477-3486.
  6. Griesbach, T. J., and Server, W. L. 1993, 'Management of Neutron Radiation Embrittlement: A View from the United States' in Radiation Embrittlement of Nuclear Reactor Pressure Vessel Steels: An International Review (Fourth Volume)-1990, edited by L.E. Steele, ASTM STP 1170, Philadelphia, pp.30-39.
  7. Hiser Jr, A. L., and Green Jr, R. E. 1999, 'Evaluation of Ultrasonic Attenuation Measurements for Estimating Irradiation Embrittlment of RPV Steels' in ibid, Chapter 18.
  8. Hurley, D. C., Balzar, D., and Purtscher, P. T. 1999, 'Ultrasonic Nonlinearity Parameter in Precipitate-hardened Steels' in ibid, Chapter 16
  9. Igarashi, B., and Alers, G. A. 1999, 'Ultrasonic Measurement of Dynamic Magneto-striction' in ibid, Chapter 23.
  10. Jackson, S. 1996, 'The Direction and Trend in US Nuclear Regulatory Policy' in The First Annual KAIF/KNS Meeting, Seoul.
  11. Jeong, H., and Hsu, D. K. 1995, 'Experimental Analysis of Porosity-induced Ultrasonic Attenuation and Velocity Change in Carbon Composites', Ultrasonics 33, pp195-203.
  12. Lee, et al. 2000, 'Ultrasonic Evaluation of Radiation Embrittlement in Reactor Vessel Materials', Proc. of 2000 Rev. of Progress in QNDE, Ames, Iowa, July16-21.
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