The influence of internal stress fields on the velocity of dislocations in B.C.C. crystals
β Scribed by M. Anglada
- Publisher
- Elsevier Science
- Year
- 1983
- Weight
- 400 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0025-5416
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Dissociation on {112} planes in b.c.c. crystals has been considered for dislocations in the ( 110) and (111) orientations. An analysis based on anisotropic elasticity theory has been employed to calculate the force between the partials in each of the possible dissociations. These calculations have
Besed on results obteiued in transforming 8 f.c.c. ("austenitio") nickel-iron single crystal by compression into 8 b.c.c. ("martensitic") structure, the process of tmnsforming 8 cubic close-pecked stack of spheres into 8 cubic body-centred stack is considered. A trensformetion process is described i
It is shown that impurity atoms distributed in the stress field of a dislocation obey Fermi-Dime statistics. This result is applied to two experimental situations. In the first o&se, it enables us to determine the binding energy of an impurity to a dislocation, and in the second we see why another a