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Statistical Evaluation of Factors Affecting IASCC of Austenitic Stainless Steels for PWR Core Internals  

Kim, Sung-Woo (Nuclear Materials Research Division, Korea Atomic Energy Research Institute (KAERI))
Hwang, Seong-Sik (Nuclear Materials Research Division, Korea Atomic Energy Research Institute (KAERI))
Kim, Hong-Pyo (Nuclear Materials Research Division, Korea Atomic Energy Research Institute (KAERI))
Publication Information
Korean Journal of Metals and Materials / v.47, no.12, 2009 , pp. 819-827 More about this Journal
Abstract
This work is concerned with a statistical analysis of factors affecting the irradiation-assisted stress corrosion cracking (IASCC) of austenitic stainless steels for core internals of pressurized water reactors (PWR). The microstructural and environmental factors were reviewed and critically evaluated by the statistical analysis. The Cr depletion at grain boundary was determined to have no significant correlation with the IASCC susceptibility. The threshold irradiation fluence of IASCC in a PWR was statistically calculated to decrease from 5.799 to 1.914 DPA with increase of temperature from 320 to $340^{\circ}C$. From the analysis of the relationship between applied stress and time-to-failure of stainless steel components based on an accelerated life testing model, it was found that B2 life of a baffle former bolt exposed to neutron fluence of 20 and 75 DPA was at least 2.5 and 0.4 year, respectively, within 95% confidence interval.
Keywords
accelerated life testing model; austenitic stainless steels; Cr depletion; irradiation-assisted stress corrosion cracking (IASCC); statistical approach; stress;
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Times Cited By Web Of Science : 3  (Related Records In Web of Science)
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1 S. M. Bruemmer, E. P. Simonen, P. M. Scott, P. L. Andresen, G. S. Was, and J. L. Nelson, J. Nucl. Mater. 274, 299 (1999)   DOI   ScienceOn
2 S. S. Hwang, D. J. Kim, Y. S. Lim, J. S. Kim, J. Park, and H. P. Kim, Corrosion Sci. Tech. 7, 189 (2008)
3 A. J. Jacobs, G. P. Wozadlo, T. Okada, S. Kawano, K. Nakata, S. Kasahara, and S. Suzuki, Proc. 6th Int. Symp. on Env. Deg. Mater. in Nucl. Power Syst., p. 597, San Diego, USA (1993)
4 J. Conermann, R. P. Shogan, D. R. Forsyth, I. L. W. Wilson, and H. T. Tang, Proc. 10th Int. Conf. on Env. Deg. Mater. in Nucl. Power Syst., paper 50, Lake Tahoe, USA (2001)
5 J. T. Busby and G. S. Was, Proc. 12th Int. Conf. on Env. Deg. Mater. in Nucl. Power Syst., p. 255, Salt Lake City, USA (2005)
6 K. Takakura, K. Nakata, M. Ando, K. Fujimoto, and E. Wachi, Proc. 13th Int. Conf. on Env. Deg. Mater. in Nucl. Power Syst., paper 9, Whistler, Canada(2007)
7 K. J. Euh, S. B. Kang, and B. M. Yang, J. Kor. Inst. Met. & Mater. 45, 292 (2007)
8 S. L. Lee, C. S. Yoo, D. W. Kim, S. C. Kwon, J. H. Kwon, Y. S. Kim, H. P. Kim, M. K. Jung, and S. S. Hwang, Technical Report, KAERI/TR-3578/2008, Daejeon (2008)
9 S. W. Kim, S. S. Hwang, and W. S. Kim, State-of-the-art Report, KAERI/AR-811/2008, Daejeon (2008)
10 S. M. Bruemmer, B. W. Arey, and L. A. Charlot, Proc. 6th Int. Symp. on Env. Deg. Mater. in Nucl. Power Syst., p. 277, San Diego, USA (1993)
11 H. T. Tang, Topical Report, MRP-175, Palo Alto (2005)
12 W. L. Clarke and A. J. Jacobs, Proc. 1st Int. Symp. on Env. Deg. Mater. in Nucl. Power Syst., p. 451, South Carolina, USA (1983)
13 P. Scott, J. Nucl. Mater. 211, 101 (1994)   DOI   ScienceOn
14 P. L. Andresen, F. P. Ford, S. M. Murphy, and J. M. Perks, Proc. 4th Int. Symp. on Env. Deg. Mater. in Nucl. Power Syst., p. 1-83, Jekyll Island, USA (1989)
15 J. Conermann, R. Shogan, K. Fujimoto, T. Yonezawa, and Y. Yamaguchi, Proc. 12th Int. Conf. on Env. Deg. Mater. in Nucl. Power Syst., p. 277, Salt Lake City, USA (2005)
16 H. Nishioka, K. Fukuya, K. Fujii, and T. Torimaru, Proc. 13th Int. Conf. on Env. Deg. Mater. in Nucl. Power Syst., paper 40, Whistler, Canada (2007)
17 G. Furutani, N. Nakajima, T. Konishi and M. Kodama, J. Nucl. Mater. 288, 179 (2001)   DOI   ScienceOn
18 H. M. Chung and W. J. Shack, NUREG report, CR-6892, Argonne (2005)
19 A. J. Jacobs, G. E. C. Bell, C. M. Shepherd, and G. P. Wozadlo, Proc. 5th Inter. Symp. on Env. Deg. Mater. in Nucl. Power Syst., p. 917, Monterey, USA (1991)
20 P. D. Freyer, T. R. Mager, and M. A. Burke, Proc. 13th Int. Conf. on Env. Deg. Mater. in Nucl. Power Syst., paper 34, Whistler, Canada (2007)
21 H. J. Won, Y. S. Pyo, S. S. Oh, Y. C. Kim, Y. S. Kim, and J. H. Hwang, Met. Mater. Int. 12, 95 (2006)   DOI   ScienceOn
22 M. Kodama, S. Nishimura, J. Morisawa, S. Suzuki, S. Shima, and M. Yamamoto, Proc. 5th Inter. Symp. on Env. Deg. Mater. in Nucl. Power Syst., p. 948, Monterey, USA(1991)
23 I. Suzuki, M. Koyama, H. Kanasaki, H. Mimaki, M. Akiyama, T. Okudo, Y. Mishima, and T. R. Mager, Int. Conf. on Nuclear Eng. 5, p. 205, ASME, 1996
24 S. S. Hwang, C. S. Yoo, Y. S. Kim, W. S. Kim, D. W. Kim, J. Park, and H. P. Kim, Trans. Korean Nucl. Soc. Spring Meeting, p. 257, Gyeongju, Korea (2008)