Segregation of phosphorus atoms to grain boundaries in ferritic steels under neutron irradiation

Segregation of solute atoms such as P to grain boundaries (GBs) in reactor pressure vessel steels can cause intergranular embrittlement. We study the segregation kinetics at low temperatures, where the thermal effects are negligible and the solute atoms are fully adhesive to GBs. An analytical depen...

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Bibliographic Details
Published in:Philosophical magazine letters 2002-06, Vol.82 (6), p.323-332
Main Author: Barashev, A.V.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Equations of state, phase equilibria, and phase transitions
Exact sciences and technology
Neutron radiation effects
Physical radiation effects, radiation damage
Physics
Solubility, segregation, and mixing
phase separation
Structure of solids and liquids
crystallography
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Summary:Segregation of solute atoms such as P to grain boundaries (GBs) in reactor pressure vessel steels can cause intergranular embrittlement. We study the segregation kinetics at low temperatures, where the thermal effects are negligible and the solute atoms are fully adhesive to GBs. An analytical dependence of the GB coverage of segregant atoms on the irradiation dose is derived.
ISSN:0950-0839
1362-3036
DOI:10.1080/09500830210135021