Abstract
The dependences of the activation parameters (formation of vacancies and self-diffusion) and specific surface energy on the volume fraction (V/V0) are calculated in terms of the Mie-Lenard-Jones pair potential of interatomic interaction for bcc-Fe along the 300-K and 3000-K isotherms. It is shown that under strong compressions (V/V0 1), the surface energy has a negative value, which must lead to the crystal structure fragmentation.
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