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

doi:10.1016/j.jnucmat.2008.12.091

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

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

68 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	218-221
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	386-388
Issue number	C
DOIs	https://doi.org/10.1016/j.jnucmat.2008.12.091
Publication status	Published - 2009 Apr 30

ASJC Scopus subject areas

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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title = "Effects of transmutation elements on the microstructural evolution and electrical resistivity of neutron-irradiated tungsten",

abstract = "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.",

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T1 - Effects of transmutation elements on the microstructural evolution and electrical resistivity of neutron-irradiated tungsten

AU - Tanno, T.

AU - Hasegawa, A.

AU - He, J. C.

AU - Fujiwara, M.

AU - Satou, M.

AU - Nogami, S.

AU - Abe, K.

AU - Shishido, T.

PY - 2009/4/30

Y1 - 2009/4/30

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AB - 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.

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