Edge dislocation core structure and the peierls barrier in body-centered cubic iron
โ Scribed by R. Chang; L. J. Graham
- Publisher
- John Wiley and Sons
- Year
- 1966
- Tongue
- English
- Weight
- 282 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0370-1972
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๐ SIMILAR VOLUMES
Dislocation segments with Burgers vector b = h1 0 0i are formed during deformation of body-centred-cubic (bcc) metals by the interaction between dislocations with b = 1/2h1 1 1i. Such segments are also created by reactions between dislocations and dislocation loops in irradiated bcc metals. The obst
High-resolution transmission electron microscopy (HRTEM) images are simulated for the core structures of 1/2[111] screw dislocations in body centered cubic (bcc) metals to examine the possibility of determining the core structure experimentally by HRTEM. Two types of cores are studied: a polarized c
In this paper, we carried out atomistic calculations to investigate in detail the core structure and motion mechanism of the 1 2 < 1 1 1 > f1 1 2g edge dislocation in a-iron. First, molecular statics simulations are used to characterise the dislocation-core structure in the framework of the Peierls-