Prismatic Dislocations in β′ NiAl
- 1 July 1968
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 39 (8), 3714-3717
- https://doi.org/10.1063/1.1656845
Abstract
Electron-transmission studies have revealed the presence of 〈100〉 prismatic dislocation loops in a single crystal of β′ NiAl. Concentric loops observed in 〈100〉 foils were found to be coaxial rather than coplanar. A comparison of as-grown, annealed, and quenched specimens has indicated that loop development depends on thermal history. Dislocation interactions were observed between coplanar loops. Interactions between segments of noncoplanar loops resulted in three-dimensional arrays.Keywords
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