Effects of angular dependent terms in the interatomic potential on defect properties in TiAl
Book
·
OSTI ID:78314
- Virginia Polytechnic Inst., Blacksburg, VA (United States). Dept. of Materials Science and Engineering
Interatomic potentials of the Embedded Atom and Embedded Defect types were used to study the effect of the angular dependent term in the Embedded Defect potential on the properties of defects in TiAl. The defect properties were computed with interatomic potentials developed with and without angular dependent terms. It was found that the inclusion of the angular dependent terms tends to increase the energies of the APB`s and lower the energies of stacking faults. The effects of the angular term on the relaxation around vacancies and antisites in TiAl was also studied, as well as the core structure of several dislocations in this compound.
- OSTI ID:
- 78314
- Report Number(s):
- CONF-941144--; ISBN 1-55899-265-0
- Country of Publication:
- United States
- Language:
- English
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