Irradiation-induced changes of the atomic distributions around the interfaces of carbides in a nuclear reactor pressure vessel steel

Autor:	Masayuki Hasegawa, A. Almazouzi, Tadakatsu Ohkubo, E. van Walle, Yasuyoshi Nagai, Masahiko Hatakeyama, N. Tsuchiya, R. Gerard, Takeshi Toyama
Rok vydání:	2010
Předmět:	Nuclear and High Energy Physics Chemistry Metallurgy Analytical chemistry chemistry.chemical_element Atom probe Nuclear reactor Pressure vessel law.invention Carbide Nuclear Energy and Engineering law Impurity Molybdenum General Materials Science Irradiation Reactor pressure vessel
Zdroj:	Journal of Nuclear Materials. 405:177-180
ISSN:	0022-3115
DOI:	10.1016/j.jnucmat.2010.08.011
Popis:	Irradiation-induced changes of the atomic distributions of solute and impurity elements around carbides in a reactor pressure vessel steel of a Belgium nuclear power reactor were investigated by laser-assisted local electrode-type three-dimensional atom probe, before and after in-service irradiation of 12 years. Before irradiation, nano-scale Fe-Mn-Cr-Mo carbides were found to be intragranular. The atomic distributions of Mn, Cr and Mo inside the carbide indicate that their concentrations around the inner carbide-matrix interface were enhanced, while a clear segregation of P at the interface was observed. After irradiation, the Mn concentration in the carbide increased substantially. In addition, the enhancement of Mn, Cr and Mo concentrations around the interface and the segregation of P were markedly intensified. (C) 2010 Elsevier B.V. All rights reserved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::64427b8d0477abd90c9729746fdaacce https://doi.org/10.1016/j.jnucmat.2010.08.011 Zobrazit plný text záznamu Full Text from ScienceDirect