Features of structural response of mechanically loaded crystallites to irradiation

Journal Article · Tue Oct 27 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4932784· OSTI ID:22492543

Korchuganov, Aleksandr V., E-mail: [e-mail] ^[1]; National Research Tomsk State University, Tomsk, 634050 ^[2]

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1. Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055 (Russian Federation)
2. (Russian Federation)

A molecular dynamics method is employed to investigate the origin and evolution of plastic deformation in elastically deformed iron and vanadium crystallites due to atomic displacement cascades. Elastic stress states of crystallites result from different degrees of specimen deformation. Crystallites are deformed under constant-volume conditions. Atomic displacement cascades with the primary knock-on atom energy up to 50 keV are generated in loaded specimens. It is shown that irradiation may cause not only the Frenkel pair formation but also large-scale structural rearrangements outside the irradiated area, which prove to be similar to rearrangements proceeding by the twinning mechanism in mechanically loaded specimens.

• OSTI ID: 22492543
• Journal Information: AIP Conference Proceedings, Vol. 1683, Issue 1; Conference: International conference on advanced materials with hierarchical structure for new technologies and reliable structures 2015, Tomsk (Russian Federation), 21-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMIC DISPLACEMENTS
ATOMS
DEFORMATION
ELASTICITY
IRON
IRRADIATION
KNOCK-ON
MOLECULAR DYNAMICS METHOD
PLASTICITY
STRESSES
TWINNING
VANADIUM