Role of {Sigma}5, (210), [001] CSL boundary on displacement cascade in bcc Fe

Journal Article · Tue Jun 05 00:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4710217· OSTI ID:22004147

Nandi, Prithwish K; Dholakia, Manan; Valsakumar, M C ^[1]

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1. Materials Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, TN (India)

Molecular dynamics simulations were carried out to understand the role of grain boundaries (GB) on radiation damage in bcc Fe bicrystal. The calculations were performed for a {Sigma}5, (210), [001] symmetric tilt grain boundary for different cases where the primary knock-on atom (PKA) is placed at distances of a{sub csl}, to 15a{sub csl}, from the grain boundary plane. Here, a{sub csl}, is lattice parameter of the coincidence site lattice. Present study shows that the influence of GB on the numbers of surviving defects within a grain is confined within a distance, d{sub opt} < 9a{sub csl}. Our studies also indicate that the grain boundary acts as a reservoir for defects.

• OSTI ID: 22004147
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1447; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BCC LATTICES
BICRYSTALS
COMPUTERIZED SIMULATION
GRAIN BOUNDARIES
GRAIN SIZE
INTERSTITIALS
IRON
LATTICE PARAMETERS
MOLECULAR DYNAMICS METHOD
RADIATION EFFECTS
SYMMETRY