The study of dislocation properties in B2 structure intermetallics NiAl and FeAl is crucial to understand their mechanical behaviors. In this paper, the core structure and Peierls stress of collinear dissociated 111 {110} edge superdislocations in NiAl and FeAl are investigated with the modified P-N
The core structure of dissociated dislocations in NiAl
β Scribed by G. Schoeck
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 279 KB
- Volume
- 49
- Category
- Article
- ISSN
- 1359-6454
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π SIMILAR VOLUMES
AbstractΓWe present a new method for the calculation of the excess energies of line and planar defects in ordered alloys, which reconciles the macroscopic thermodynamic concept of a Gibbsian excess energy with the results of total energy calculations on the atomic scale. The method is applied here t
The behaviour of dislocations dissociated into two partials, dislocations which are not freely mobile on the plane of dissociation has been studied in the frame of a model where the frictional force is described by a simple Peierls-Nabarro potential. In addition to the dislocations exhibiting the eq