Radiation damage near grain boundaries

Large-scale molecular dynamics of cascade production of the primary damage state are performed in nanocrystalline nickel with an average grain diameter of 12 nm and primary knock-on atom kinetic energies ranging from 5 to 30 keV. The role of the grain boundary during the cascade production of irradiated NC Ni is discussed in terms of grain-boundary structure. It is shown that regions of misfit in the grain boundaries can absorb self-interstitials and that stacking-fault tetrahedra are formed in the neighbourhood of the grain boundary.


Published in:
Philosophical Magazine, 83, 31-34, 3599-3607
Year:
2003
ISSN:
1478-6443
ISBN:
1478-6443
Note:
Sp. Iss. SI
Laboratories:
SPC
CRPP




 Record created 2008-04-16, last modified 2018-01-28


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