Recrystallization Texture of Submicrocrystalline Niobium after Annealing
- Authors: Voronova L.M.1, Chashchukhina T.I.1, Degtyarev M.V.1
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Issue: Vol 119, No 9 (2018)
- Pages: 880-886
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://journals.rcsi.science/0031-918X/article/view/167810
- DOI: https://doi.org/10.1134/S0031918X18090156
- ID: 167810
Cite item
Abstract
Scanning electron microscopy shows that in pure niobium deformed by shear under pressure, a grain structure characterized by an axial texture of recrystallization is formed from the textureless deformed state during annealing. The sharpest texture is formed during annealing at 800°C. The fraction of the area occupied by recrystallized grains, in which planes (110) are parallel to the sample plane, reaches 90%; the fraction of high-angle boundaries (HABs) is 40%; and the average grain-boundary (misorientation) angle is 17°. The texture forms during selective growth of recrystallization centers. The formation of new recrystallization centers in addition to deformation-induced growing centers during 900°C annealing slightly increases the fraction of HABs, the average misorientation angle, and creates a blurred recrystallization texture.
About the authors
L. M. Voronova
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Author for correspondence.
Email: highpress@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
T. I. Chashchukhina
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: highpress@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
M. V. Degtyarev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: highpress@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
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