Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
권호 표지

The Feasibility Study on a High-Temperature Application of the Magnetostrictive Transducer Employing a Thin Fe-Co Alloy Patch

  • Heo, Tae-Hoon (Center for Safety Measurement, Korea Research Institute of Standards and Science) ;
  • Park, Jae-Ha (Safety and Structural Integrity Research Center, Sungkyunkwan University) ;
  • Ahn, Bong-Young (Center for Safety Measurement, Korea Research Institute of Standards and Science) ;
  • Cho, Seung-Hyun (Center for Safety Measurement, Korea Research Institute of Standards and Science)
  • Received : 2011.04.20
  • Accepted : 2011.06.03
  • Published : 2011.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

The on-line monitoring for the wall thinning in secondary system has been considered one of main issues for the safety of nuclear power plants. To establish the on-line monitoring technique for the pipe wall thinning, the development of the ultrasonic transducer working in high-temperature is very important. In this investigation, the magnetostrictive transducer is concerned for high temperature condition up to $300^{\circ}C$. The magnetostrictive transducer has many advantages such as high working temperature, durability, cost-effectiveness, and shear waves, most of all. A thin Fe-Co alloy patch whose Curie temperature is over $900^{\circ}C$ was employed as a ferromagnetic material for magnetostriction. Wave transduction experiments in various temperature were carried out and the effect of bias magnets was considered together with the dry coupling performance of the transducer. From experimental results, consequently, it was found that the magnetostrictive transducer works stable even in high temperature up to $300^{\circ}C$ and can be a promising method for the on-line monitoring of the wall thinning in nuclear power plants.

Keywords

References

  1. J. W. Kim and C. Y. Park, "Effect of length of thinning area on the failure behavior of carbon steel pipe containing a defect of wall thinning," Nuclear Engineering and Design, Vol. 220, pp. 274-284 (2003) https://doi.org/10.1016/S0029-5493(02)00386-2
  2. J. M. Pietralik and C. S. Schefski, "Flow and mass transfer in bends under flow-accelerated corrosion wall thinning conditions," Journal of Engineering for Gas Turbines and Power, Vol. 133, 012902-1, January (2011)
  3. J. Bridgeman and R. Shankar, "Erosion/corrosion data handling for reliable NDE," Nuclear Engineering and Design, Vol. 131, pp. 285-297 (1991) https://doi.org/10.1016/0029-5493(91)90302-X
  4. M. Matsumura, "A case study of a pipe line burst in the Mihama nuclear power plant," Materials and Corrosion, Vol. 57, No. 11, pp. 872-882 (2006) https://doi.org/10.1002/maco.200503971
  5. L. C. Lynnworth, G. Jossinet and E. Cherifi, "300 ${^{\circ}C}$ clamp-on ultrasonic transducers for measuring water flow and level," IEEE Ultrasonics Symposium, pp. 407-412 (1996)
  6. C. A. Calder, E. C. Draney and W. W. Wilcox, "Noncontact measurement of the elastic constants of plutonium at elevated temperatures," Journal of Nuclear Materials, Vol. 97, pp. 126-136 (1981) https://doi.org/10.1016/0022-3115(81)90425-6
  7. C.-K. Jen, J.-G. Legoux and L. Parent, "Experimental evaluation of clad metallic buffer rods for high temperature ultrasonic measurements," NDT&E International, Vol. 33, pp. 145-153 (2000) https://doi.org/10.1016/S0963-8695(99)00042-0
  8. A.-U. Rehman, C.-K. Jen and I. Ihara, "Ultrasonic probes for high temperature immersion measurements," Measurement Science and Technology, Vol. 12, pp. 306-312 (2001) https://doi.org/10.1088/0957-0233/12/3/309
  9. L. C. Lynnworth, "Bundle buffer measures flow at temperature extremes," Flow Control, Vol. XIII, No.3, (2007)
  10. R. Kazys, A. Voleisis and B. Voleisiene, "High temperature ultrasonic transducers: review," Ultrasound, Vol. 63, No.2, pp. 7-17 (2008)
  11. V. S. K. Prasad, K. Balasubramaniam, E. Kannan and K. L. Geisinger, "Viscosity measurements of melts at high temperatures using ultrasonic guided waves," journal of materials processing technology, Vol. 207, pp. 315-320 (2008) https://doi.org/10.1016/j.jmatprotec.2008.06.049
  12. M. Kobayashi, C.-K.Jen, J. F. Bussiere and K.-T.Wu, "High-temperature integrated and flexible ultrasonic transducers for nondestructive testing," NDT&E International, Vol. 42, pp. 157-161 (2009) https://doi.org/10.1016/j.ndteint.2008.11.003
  13. H. Kwun and S. Y. Kim, "Magnetostrictive sensor for generating and detecting plate guided waves," Transactions of the ASME, Vol. 127, pp. 284-289, August (2005)
  14. S. H. Cho, H. W. Kim and Y. Y. Kim, "Megahertz-range guided pure torsional wave transduction and experiments using a magnetostrictive transducer," IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 57, No.5, May (2010)
  15. S. H. Cho, S. W. Han, C. I. Park and Y. Y. Kim, "Noncontact torsional wave transduction in a rotating shaft using oblique magnetostrictive strips," Journal of Applied Physics, Vol. 100, pp. 104903 (2006) https://doi.org/10.1063/1.2386942
  16. J. S. Lee, Y. Y. Kim and S. H. Cho, "Beam-focused shear-horizontal wave generation in a plate by a circular magnetostrictive patch transducer employmg a planar solenoid array," Smart Materials and Structures, Vol. 18, No.1, pp. 015009, (2009) https://doi.org/10.1088/0964-1726/18/1/015009
  17. M. K. Murali and K. Neelakantan, "Improved ultrasonic flaw detection technique for austenitic stainless steel welds," NDT International, Vol. 14, Issue 6, pp. 321-324, December (1981) https://doi.org/10.1016/0308-9126(81)90110-3
  18. P. Hollera and V. Schmitza, "Products of research and development in NDT," Nuclear Engineering and Design, Vol. 76, Issue 3, pp. 233-249, December (1983) https://doi.org/10.1016/0029-5493(83)90108-5
  19. G. E. Fish, "Soft magnetic materials," Proceedings of the IEEE, Vol. 78, No.6, pp. 947-972, June (1990) https://doi.org/10.1109/5.56909
  20. R. S. Sundar and S. C. Deevi, "Soft magnetic FeCo alloys: alloy development, processing, and properties," International Materials Reviews, Vol. 50, No.3, pp. 157-192(36), June (2005) https://doi.org/10.1179/174328005X14339
  21. R. S. Sundar and S. C. Deevi, "Influence of alloying elements on the mechanical properties of FeCo-V alloys," Intermetallics, 12, pp. 921-927 (2004) https://doi.org/10.1016/j.intermet.2004.02.022