Environmental Effects on Making Artificial Specimens for Steam Generator Tube ECT Demonstration
9th International Conference on CANDU® Maintenance - 2011 December 04-06


Presented at:
9th International Conference on CANDU® Maintenance
2011 December 04-06
Location:
Toronto, Canada
Session Title:
Inspection Tools Session B3

Authors:
Jaesoo Lim (Korea Hydro and Nuclear Power Company)
Yongseok Kang (Korea Hydro and Nuclear Power Company)
Wangbae Kim (Korea Hydro and Nuclear Power Company)
Sungwoo Kim (Korea Atomic Energy Research Institute)
  

Abstract

Nuclear power plants are suffering safety issues caused by cracking, wastage, fretting, or denting of steam generator tubes. Detecting defects is done by ECT and depends on earliness and precision to detect them. Performance Demonstration is the first step to enhance the successful detection and to develop new technologies regarding ECT. PD needs cracked specimens whether they are real or artificial. Three environmental conditions have been tried: hot doped steam, caustic solution, and acidic solution. Combination with acidic for initiation and caustic and/or doped steam for growth was reasonable because of easy control for type, location, and depth of SCC.

Individual Conference-Paper Copies (Electronic Where Available):

  • For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
  • For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
  • Contact the CNS office to order reprints.