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Título : Vacancy-solute complexes and their clusters in iron
Autor : Duque Echeverri, Carlos Alberto
Morales Aramburo, Álvaro Luis
Kuriplach, J.
Melikhova, O.
Domain, C.
Becquart, C.S.
Kulikov, D.
Malerba, L.
Hou, M.
Almazouzi, A.
metadata.dc.subject.*: Atomic superposition method
Electron–positron momentum distribution
RPV steels
Vacancy-solute clusters
Vacancy-solute complexes
Fecha de publicación : 2006
Editorial : Elsevier
Citación : Kuriplach, J., et al. (2006). Vacancy-solute complexes and their clusters in iron. Applied Surface Science, 252(9), 3303-3308. https://doi.org/10.1016/j.apsusc.2005.08.075
Resumen : ABSTRACT: In this contribution, several vacancy-solute complexes in iron are investigated theoretically from the viewpoint of positron annihilation. In particular, V-Si, V-P, V-Cr, V-Mn, V-Ni, V-Cu and V-Mo complexes are examined. In addition, nano-sized vacancy-Cu clusters in the Fe matrix are also studied. We concentrate on positron lifetimes and coincidence Doppler broadening profiles that bring complementary information about the studied complexes and their clusters. Positron calculations are carried out using the atomic superposition method employing realistic atomic configurations obtained recently using an ab initio pseudopotential method (vacancy-solute complexes) and Monte Carlo/molecular dynamics methods (vacancy-Cu clusters). The main aim of this study is to predict as to what extent such defects are detectable and differentiable using positron annihilation techniques. The results obtained are discussed in the context of experimental data available in the literature.
ISSN : 0169-4332
metadata.dc.identifier.doi: 10.1016/j.apsusc.2005.08.075
Aparece en las colecciones: CIA (Centro de Investigaciones Ambientales y de Ingeniería)

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