Effects of transmutation elements on the microstructural evolution and electrical resistivity of neutron-irradiated tungsten

T. Tanno, A. Hasegawa, J. C. He, M. Fujiwara, M. Satou, S. Nogami, K. Abe, T. Shishido

研究成果: ジャーナルへの寄稿学術論文査読

88 被引用数 (Scopus)

抄録

During fusion reactor operation, transmutation elements such as rhenium (Re) and osmium (Os) are produced from tungsten (W) upon neutron irradiation. Thus, the pure W becomes W-Re or W-Re-Os alloys and its physical properties gradually change. The irradiation hardening, microstructural changes, and physical properties of these transmutation elements of W are here investigated. Tungsten-based model alloys are fabricated and neutron irradiation is performed in the JOYO fast test reactor. The irradiation dose and temperature are 0.17-1.54 dpa and 400-750 °C, respectively. Vickers hardness measurements, microstructural observations, and electrical resistivity measurements are subsequently performed. The effects of the microstructural evolution on the irradiation hardening and electrical resistivity are discussed.

本文言語英語
ページ(範囲)218-221
ページ数4
ジャーナルJournal of Nuclear Materials
386-388
C
DOI
出版ステータス出版済み - 2009 4月 30

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