On the onset of void ordering in metals under neutron or heavy-ion irradiation

Formation of void lattices is observed in a number of metals and alloys under high-energy particle bombardment. The conditions were derived for destabilisation of homogeneous void arrangement using an approach developed for the description of lane formation in pedestrian crowds. The model is based o...

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Bibliographic Details
Published inPhilosophical magazine (Abingdon, England) Vol. 90; no. 13; pp. 1787 - 1797
Main Authors Barashev, A.V., Golubov, S.I.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis Group 07.05.2010
Taylor & Francis
Subjects
ALIGNMENT
ALLOYS
ATOMIC AND MOLECULAR PHYSICS
ATOMS
Condensed matter: structure, mechanical and thermal properties
DEFECTS
Defects and impurities in crystals; microstructure
DISLOCATIONS
displacement cascade
Exact sciences and technology
HEAVY IONS
interstitial cluster
Ion radiation effects
IRRADIATION
Linear defects: dislocations, disclinations
Neutron radiation effects
NEUTRONS
Order disorder
Physical radiation effects, radiation damage
Physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Structure of solids and liquids; crystallography
SWELLING
void lattice
void swelling
Voids
Radiation effects
Order-disorder transformations
Crystal defects
Heavy ions
Swelling
Spatial correlation
Irradiation defect
Precipitates
Dislocations
Voids
Ion irradiation
High energy
Interstitial impurities
Ordering
Neutron irradiation
Interstitial cluster
Atomic clusters
Physical Sciences
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Summary:Formation of void lattices is observed in a number of metals and alloys under high-energy particle bombardment. The conditions were derived for destabilisation of homogeneous void arrangement using an approach developed for the description of lane formation in pedestrian crowds. The model is based on the Foreman's mechanism of void alignment due to one-dimensionally migrating clusters of self-interstitial atoms. The results show that spatial correlations between voids should exist above some very small size, unless correlations with other defects prevail. It is shown that spatial correlations of voids with dislocations and second-phase precipitates should also evolve and provide a powerful driving force for further swelling.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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DE-AC05-00OR22725
USDOE Office of Science (SC)
ISSN:1478-6435
1478-6443
1478-6433
DOI:10.1080/14786430903482735