TY - JOUR
T1 - Microstructure development of dispersion-strengthened tungsten due to neutron irradiation
AU - Fukuda, Makoto
AU - Hasegawa, Akira
AU - Nogami, Shuhei
AU - Yabuuchi, Kiyohiro
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2014/6
Y1 - 2014/6
N2 - This work investigated the effects of neutron irradiation on microstructure development in pure and dispersion-strengthened W (i.e., lanthanum (La)-doped W and potassium (K)-doped W). The irradiation experiments were performed in the experimental fast reactor Joyo. The irradiation temperature and damage were in the range 531-756 °C and 0.42-0.47 dpa, respectively. Voids, dislocation loops, and black dots were observed in pure, La-doped, and K-doped W after neutron irradiation with almost identical size and number density of the defect clusters. Likewise, the hardening of pure, La-doped, and K-doped W because of neutron irradiation was nearly identical. Thus, the dispersion of the second phase in La-doped and K-doped W did not affect the microstructure development and irradiation hardening in tungsten under neutron-irradiation conditions in this work.
AB - This work investigated the effects of neutron irradiation on microstructure development in pure and dispersion-strengthened W (i.e., lanthanum (La)-doped W and potassium (K)-doped W). The irradiation experiments were performed in the experimental fast reactor Joyo. The irradiation temperature and damage were in the range 531-756 °C and 0.42-0.47 dpa, respectively. Voids, dislocation loops, and black dots were observed in pure, La-doped, and K-doped W after neutron irradiation with almost identical size and number density of the defect clusters. Likewise, the hardening of pure, La-doped, and K-doped W because of neutron irradiation was nearly identical. Thus, the dispersion of the second phase in La-doped and K-doped W did not affect the microstructure development and irradiation hardening in tungsten under neutron-irradiation conditions in this work.
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U2 - 10.1016/j.jnucmat.2013.10.012
DO - 10.1016/j.jnucmat.2013.10.012
M3 - Article
AN - SCOPUS:84901229036
VL - 449
SP - 213
EP - 218
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
IS - 1-3
ER -