Polarizabilities of point defects in metals
- 30 November 1984
- journal article
- Published by Elsevier BV in Journal of Nuclear Materials
- Vol. 126 (3), 220-225
- https://doi.org/10.1016/0022-3115(84)90032-1
Abstract
The elastic polarizabilities of vacancies and self-interstitials in Cu and Fe are calculated by computer simulation. The polarizabilities of the equilibrium configurations determine the dielastic modulus change whereas those in the saddle point are important parameters in calculations of the absorption bias of extended defects, e.g. dislocations. Especially many theories of stress induced preferential absorption (SIPA) make use of them. Simplified descriptions in terms of orientally averaged elastic constant charges should work well for Cu, whereas in Fe important contributions are omitted.Keywords
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