Microstructural Properties of the ß-NiA1 Phase in the Ternary Ni-Based Ni-Al-Ta Superalloys
✍ Scribed by Baldan, A.
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 923 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0031-8965
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The present study is mainly concerned with the relation between electron concentration and anomalous dip appearing on the [110]TA 1 phonon branch of the b 1 -phase (B2-structure) in Ni-Al alloys. By substituting Co for Ni, the dip-position shifts toward the Brillouin zone center. In addition, we pro
The energies for stoichiometric and defected binary and ternary B2 phases in the Al-Ni-Ru ternary system were calculated from firstprinciples. The dominant compositions-conserving constitutional defect structures for NiAl and RuAl have been determined as (Al, Ni)-(Ni, Va) and (Ru, Al, Va)(Al), respe