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 inPhilosophical magazine letters Vol. 82; no. 6; pp. 323 - 332
Main Author Barashev, A.V.
Format Journal Article
LanguageEnglish
Published London Taylor & Francis Group 01.06.2002
Taylor & Francis
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
Ferritic steels
Radiation effects
Point defects
Embrittlement
Defect clusters
Boundary conditions
Defect recombination
Phosphorus additions
Experimental study
Reactor materials
Initial conditions
Pressure vessels
Analytical method
Neutron beams
Modelling
Grain boundary segregation
Impurity segregation
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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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0950-0839
1362-3036
DOI:10.1080/09500830210135021