The role of silicon on solute clustering and embrittlement in highly neutron-irradiated pressurized water reactor surveillance test specimens

•The role of Si content on irradiation embrittlement was clarified.•Solute atom clusters of highly neutron-irradiated Japanese pressurized water reactor surveillance test specimens were analyzed by atom probe tomography.•The cluster radius and number density decreased and increased, respectively, wi...

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Veröffentlicht in:	Journal of nuclear materials 2021-12, Vol.556, p.153203, Article 153203
Hauptverfasser:	Takamizawa, Hisashi, Hata, Kuniki, Nishiyama, Yutaka, Toyama, Takeshi, Nagai, Yasuyoshi
Format:	Artikel
Sprache:	eng
Schlagworte:	Atom probe tomography Atomic properties Atomic radius Bearing materials Clustering Copper Core-shell structure Ductile-brittle transition Ductility Embrittlement Fluence Irradiation Irradiation embrittlement Manganese Nickel Nuclear reactors Pressure vessels Pressurized water reactors PWR surveillance test specimen Reactor pressure vessel steel Reactors Si content effect Silicon Solute atoms cluster Solutes Structural steels Surveillance
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