Abstract
In this study, Fe3+ self-ion irradiation is used as means of introducing irradiation damage in ferritic/martensitic (F/M) steel and oxide dispersion strengthened (ODS) steel. The ion accelerator named DuET (at Kyoto University, Japan) was used for irradiation with 6.4 MeV Fe3+ ions at 300 °C. The total number of accelerated ions was 2.5 × 1020 ions/m2, and the maximum damage rates in the F/M and the ODS steels were estimated to be roughly 6 dpa. The irradiation-induced hardness change in the damaged layer was evaluated by using nano-indentation. The F/M steel and the ODS steel commonly exhibited irradiation hardening; however, the irradiation hardening was more active in the F/M steel than in the ODS steel. The microstructure evolutions after the irradiation were investigated; point or line defects were dominantly observed in the F/M steel, while small circular cavities were typically observed in ODS steel.
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M. Ando, H. Tanigawa, S. Jitsukawa, T. Sawai, Y. Katoh, A. Kohyama, K. Nakamura and H. Takeuchi, J. Nucl. Mater. 307–311, 260 (2002).
H. -H. Jin, C. Shin and W. W. Kim, Solid State Phenom. 135, 119 (2008).
W. C. Oliver and G. M. Pharr, J. Mater. Res. 19, 3 (2004).
C. Pokor, Y. Brechet, P. Dubuisson, J.-P. Massoud and A. Barbu, J. Nucl. Mater. 326, 19 (2004).
M. Matijasevic, E. Lucon and A. Almazouzi, J. Nucl. Mater. 377, 101 (2008).
R. Coppola, R. Lindau, M. Magnani, R. P. May, A. Möslang, J.W. Rensman, B. vander Schaaf and M. Valli, Fusion Eng. Des. 75–79, 985 (2005).
M. Matijasevic and A. Almazouzi, J. Nucl. Mater. 377, 147 (2008).
A. Alamo, V. Lambard, X. Averty, and M. H. Mathon, J. Nucl. Mater. 329–333, 333 (2004).
T. Yoshitake, Y. Abe, N. Akasaka, S. Ohtsuka, S. Ukai and A. Kimura, J. Nucl. Mater. 329–333, 342 (2004).
S. Yamashita, N. Akasaka and S. Ohnuki, J. Nucl. Mater. 329–333, 377 (2004).
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Kang, S.H., Chun, YB., Noh, S. et al. Radiation damage of F/M and ODS alloys after Fe3+-ion irradiation at 300 °C. Journal of the Korean Physical Society 66, 505–508 (2015). https://doi.org/10.3938/jkps.66.505
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DOI: https://doi.org/10.3938/jkps.66.505