Abstract
The structure of the core of a \(1/6\langle 2\overline 1 \overline 1 0\rangle \) superpartial dislocation in the prism plane of the D019 superlattice is studied by computer simulation. Atomic interaction potentials for Ti3Al are derived with the embedded atom method. The core of the superpartial dislocation is found to have three different configurations (of I′, I, and II types) in nonequivalent prism planes \(\{ 0\overline 1 10\} \). For screw and edge dislocations, the core is planar in type-I′ prism planes and nonplanar in prism planes of type I and II. Results of simulation are compared with experimental data for the superdislocation mobility in Ti3Al.
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 73, No. 1, 2003, pp. 60–66.
Original Russian Text Copyright © 2003 by Yakovenkova, Karkina, Rabovskaya.
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Yakovenkova, L.I., Karkina, L.E. & Rabovskaya, M.Y. The atomic structure of the \(1/3\langle 2\overline 1 \overline 1 0\rangle \) superdislocation core and prismatic slip in Ti3Al. Tech. Phys. 48, 56–62 (2003). https://doi.org/10.1134/1.1538728
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DOI: https://doi.org/10.1134/1.1538728