TY - JOUR
T1 - Dose dependence of irradiation hardening of binary ferritic alloys irradiated with Fe3+ ions
AU - Yabuuchi, Kiyohiro
AU - Yano, Hiroki
AU - Kasada, Ryuta
AU - Kishimoto, Hirotatsu
AU - Kimura, Akihiko
N1 - Funding Information:
This work is supported by Japan Society for the Promotion of Science (JSPS); the author is a JSPS Research Fellow. The authors are grateful to Mr. Hashitomi and Mr. Omura for their generous support for the DuET irradiation experiments and TEM observations.
PY - 2011/10/1
Y1 - 2011/10/1
N2 - The effects of alloying elements on irradiation hardening behavior of various Fe-based binary alloys irradiated with Fe3+ ions were investigated by using the nano-indentation technique. Ion-irradiations with 6.4 MeV Fe3+ were performed on Pure-Fe, Fe-1Cr, Fe-1Mn, Fe-1.5Mn, Fe-1Ni, Fe-1Cu, and Fe-1Mo to nominal displacement damage levels of 0.1, 0.3 and 1 dpa, at a damage rate of 1 × 10-4 dpa/s at 290 °C. Significant irradiation hardening was observed in the Fe-1Mn, Fe-1.5Mn and Fe-1Ni as well as in the Fe-1Cu, but not in the Pure-Fe, Fe-1Cr and Fe-1Mo, after irradiation to 1 dpa at 290 °C. The dose dependence of the irradiation hardening was well explained for all the alloys by the saturation fitting model. Microstructural observation suggested that irradiation induced matrix defects in Fe-Mn binary alloy promoted the irradiation hardening.
AB - The effects of alloying elements on irradiation hardening behavior of various Fe-based binary alloys irradiated with Fe3+ ions were investigated by using the nano-indentation technique. Ion-irradiations with 6.4 MeV Fe3+ were performed on Pure-Fe, Fe-1Cr, Fe-1Mn, Fe-1.5Mn, Fe-1Ni, Fe-1Cu, and Fe-1Mo to nominal displacement damage levels of 0.1, 0.3 and 1 dpa, at a damage rate of 1 × 10-4 dpa/s at 290 °C. Significant irradiation hardening was observed in the Fe-1Mn, Fe-1.5Mn and Fe-1Ni as well as in the Fe-1Cu, but not in the Pure-Fe, Fe-1Cr and Fe-1Mo, after irradiation to 1 dpa at 290 °C. The dose dependence of the irradiation hardening was well explained for all the alloys by the saturation fitting model. Microstructural observation suggested that irradiation induced matrix defects in Fe-Mn binary alloy promoted the irradiation hardening.
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U2 - 10.1016/j.jnucmat.2010.12.204
DO - 10.1016/j.jnucmat.2010.12.204
M3 - Article
AN - SCOPUS:80053584878
SN - 0022-3115
VL - 417
SP - 988
EP - 991
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3
ER -