INVESTIGADORES
BRIZUELA Graciela Petra
artículos
Título:
The electronic structure and behavior in dislocated BCC iron
Autor/es:
A. JUAN, L. MORO, S. GESARI, G. BRIZUELA
Revista:
LATIN AMERICAN APPLIED RESEARCH
Editorial:
UNS
Referencias:
Lugar: Bahia Blanca. Argentina; Año: 2005
ISSN:
0327-0793
Resumen:
The H-Fe interaction is favoured for the dislocated structure and the calculations
indicate that, when the H atom resides near a mixed dislocation the total energy decreases.
This preference of hydrogen for the bulk void introduced by the dislocation is compatible
with the theoretical and experimental result reported by other authors.
The H effects near a screw dislocation core are less severe due to a repulsive
interaction that prevents H localization near the core.
Our qualitative results are in a good agreement with previous experimental traction-strain
test in a sense that H decreases the strain at which a fracture is produced.