Email this article Evolution of Dislocation Structure in a Ni3Al Single Crystal Under the Conditions of High-Temperature Superplasticity
- Authors: Kazantseva N.V.1,2, Stepanova N.N.1, Vinogradova N.I.1
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Affiliations:
- Institute of Metals Physics of the Mikheev Ural Branch of the Russian Academy of Sciences
- Ural State University for Lines of Communication
- Issue: Vol 58, No 9-10 (2017)
- Pages: 548-552
- Section: Refractory Alloys
- URL: https://ogarev-online.ru/0026-0673/article/view/235931
- DOI: https://doi.org/10.1007/s11041-017-0052-x
- ID: 235931
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Abstract
The evolution of defective structure in a single crystal of a Ni3Al-base intermetallic with iron and chromium additives under the conditions of superplasticity (δ = 140%) is studied by transmission electron microscopy. The tensile deformation is performed a 1150°C. Planar flaws and recrystallized grains are detected in the fractured zone of the metal. The mechanisms of high-temperature superplasticity of alloys based on Ni3Al intermetallic are discussed.
About the authors
N. V. Kazantseva
Institute of Metals Physics of the Mikheev Ural Branch of the Russian Academy of Sciences; Ural State University for Lines of Communication
Email: petroprom2013@yandex.ru
Russian Federation, Ekaterinburg; Ekaterinburg
N. N. Stepanova
Institute of Metals Physics of the Mikheev Ural Branch of the Russian Academy of Sciences
Email: petroprom2013@yandex.ru
Russian Federation, Ekaterinburg
N. I. Vinogradova
Institute of Metals Physics of the Mikheev Ural Branch of the Russian Academy of Sciences
Email: petroprom2013@yandex.ru
Russian Federation, Ekaterinburg
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