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Proceedings of the 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors pp 639–650Cite as

Formation of He Bubbles by Repair-Welding in Neutron-Irradiated Stainless Steels Containing Surface Cold-Worked Layer

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Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

Stress corrosion cracking (SCC) has been found on surfaces of reactor internals which are heavily cold-worked by machining. When repair welding is applied to the cracked region, the cold-worked surface will be included in the welding region. Therefore, the effect of the cold-worked layer on the weldability of irradiated stainless steels (SSs) needs to be clarified. In this study, helium bubbles formed by welding on irradiated SSs were investigated by measurements and comparisons to published results. TIG welding was performed on an irradiated SS plate with a cold-worked layer generated by wire peening. Re-crystallization was confirmed in the weld after peening at the surface near the weld heat affected zone (HAZ). The helium bubble number density along the grain boundary in the re-crystallized region was the same as in the non-re-crystallized region, whereas the bubble diameter was smaller. Helium bubble growth was suppressed by the re-crystallization behavior.

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References

  1. W.R. Kanne Jr., Remote reactor repair: GTA weld cracking caused by entrapped helium. Weld. J. 67, 33–39 (1988)

    CAS  Google Scholar 

  2. C.A. Wang, M.L. Grossbeck, B.A. Chin, Threshold helium concentration required to initiate cracking during welding of irradiated stainless steel. J. Nucl. Mater. 225, 59–68 (1995)

    Article  CAS  Google Scholar 

  3. H.T. Lin, M.L. Grossbeck, B.A. Chin, Cavity microstructure and kinetics during GAS tungsten arc welding of helium-containing stainless steel. Metall. Trans. A 21A, 2585–2596 (1990)

    Article  CAS  Google Scholar 

  4. W.R. Kanne Jr., G.T. Chandler, D.Z. Nelson, E.A. Franko-Ferreira, Welding irradiated stainless steel. J. Nucl. Mater. 225, 69–75 (1995)

    Article  CAS  Google Scholar 

  5. K. Asano, S. Nishimura, Y. Saito, H. Sakamoto, Y. Yamada, T. Kato, T. Hashimoto, Weldability of neutron irradiated Austenitic stainless steel. J. Nucl. Mater. 264, 1–9 (1999)

    Article  CAS  Google Scholar 

  6. S. Suzuki, K. Takamori, K. Kumagai, T. Fukuda, Y. Yamashita, T. Futami, Evaluation of SCC morphology on L-Grade stainless steel in BWRs. J. High Press. Inst. Japan 42(4), 188–198 (2004)

    Google Scholar 

  7. M. Koshiishi, T. Nakamura, K. Asano, Influence of surface peening on the weldability of neutron-irradiated stainless steel, in 14th International Symposium on Environmental Degradation of Materials in Nuclear Power Systems–Water Reactors, ANS, pp.1392–1398 (2003)

    Google Scholar 

  8. JNES, Annual Report of Japan Nuclear Energy Safety Organization PMT Project of JFY 2003. (JNES Report, 2004)

    Google Scholar 

  9. JNES, Annual Report of Japan Nuclear Energy Safety Organization WIM Project of JFY 2004. (JNES Report, 2005)

    Google Scholar 

  10. JNES, Guideline of the Repair-welding on Neutron-irradiated Stainless Steels. (JNES SS report, JNES-SS-0502, 2005)

    Google Scholar 

  11. T. Hashimoto, M. Mochizuki, Modeling of helium bubble formation during welding of irradiated stainless steels, Effects of Radiation on Materials, ASTM STP 1366, ed. by M.L. Hamilton, A.S. Kumar, S.T. Rosinski, M.L. Grossbeck (ASTM, 2000), pp. 973–987

    Google Scholar 

  12. T. Hashimoto, N. Yanagida, M. Koshiishi, S. Kawano, H. Sakamoto, K. Nakata, M. Oishi, Numerical analysis on the weldability of neutron-irradiated stainless steels, Mathematical Modeling of Weld Phenomena 6, ed. by H. Cerjak, H.K.D.H Bhadeshia (Institute of Materials, 2002), pp. 443–466

    Google Scholar 

  13. M. Koshiishi, K. Kashiwakura, T. Hashimoto, H. Takahashi, weldability of neutron irradiated stainless steels studied by multi-pass TIG and YAG laser welding, in 11th International Conference on Environmental Degradation of Materials in Nuclear Power Systems–Water Reactors, ANS, pp. 951–959 (2003)

    Google Scholar 

  14. I. Ohnuma, H. Ohtani, K. Ishida, T. Nishizawa, Computer simulation of grain growth in particle dispersed structure. J. Japan Inst. Metals 58(10), 1133–1140 (1994)

    Article  CAS  Google Scholar 

  15. Z. Jiao, G. Was, T. Miura, K. Fukuya, Aspects of ion irradiations to study localized deformation in austenitic stainless steels. J. Nucl. Mater. 452, 328–334 (2014)

    Article  CAS  Google Scholar 

  16. T. Miura, K. Fujii, K. Fukuya, Z. Jiao, G. Was, A study for effects of grain size on occurrence of IASCC effects of grain size on localized deformation of irradiated stainless steel. J. Inst. Nucl. Saf. Syst. 18, 211–217 (2011)

    Google Scholar 

  17. K. Kako, Y. Miyahara, T. Arai, M. Mayuzumi, Effects of chemical compositions and grain size on stress corrosion cracking of Austenitic stainless steel in high temperature water, (CRIEPI Report, Q07020, 2008)

    Google Scholar 

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Acknowledgements

The authors wish to express their appreciation to Prof. Yutaka Watanabe of Tohoku University for his guidance and fruitful discussions. The authors also acknowledge Mr. Tsuneyuki Hashimoto of Nippon Nuclear Fuel Development Co., Ltd. for helpful discussions on this study.

Author information

Authors and Affiliations

  1. Nippon Nuclear Fuel Development Co., Ltd, 2163 Narita-Cho, Oarai-Machi, Higashi-Ibaraki-Gun, Ibaraki-Ken, 311-1313, Japan

    Masato Koshiishi

  2. Hitachi-GE Nuclear Energy, Ltd, 1-1, Saiwai-cho 3-chome, Hitachi-Shi, Ibaraki-Ken, 317-0073, Japan

    Naoto Shigenaka

Authors
  1. Masato Koshiishi
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  2. Naoto Shigenaka
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Corresponding author

Correspondence to Masato Koshiishi .

Editor information

Editors and Affiliations

  1. Idaho National Laboratory, Idaho Falls, ID, USA

    John H. Jackson

  2. Naval Nuclear Laboratory, Pittsburgh, PA, USA

    Denise Paraventi

  3. Chalk River Laboratories, Canadian Nuclear Laboratories, Chalk River, ON, Canada

    Michael Wright

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© 2019 The Minerals, Metals & Materials Society

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Koshiishi, M., Shigenaka, N. (2019). Formation of He Bubbles by Repair-Welding in Neutron-Irradiated Stainless Steels Containing Surface Cold-Worked Layer. In: Jackson, J., Paraventi, D., Wright, M. (eds) Proceedings of the 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-04639-2_41

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