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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Microstructural Evolution and Micro-Texture in...

Microstructural Evolution and Micro-Texture in Zr-2.5Nb Tubes

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Abstract:

Both small experimental extruded tubes and full-size pressure tubes were examined using scanning electron microscope/electron backscattered diffraction (SEM/EBSD) and transmission electron microscope/selected area diffraction (TEM/SAD). The final microstructures and textures vary with billet microstructure, extrusion temperature and extrusion ratio. Three components in {0002} pole figures were determined. The first component (radial) is produced by a and c+a slip in a-grains during extrusion. The second component (transverse) is associated with the elongated a- grains with their c-axes parallel to their long dimension. The third component (axial) is produced by b-a phase transformation after extrusion with a preferred variant of the Burgers relationship.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

1421-1424

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.1421

Citation:

Cite this paper

Online since:

January 2005

Authors:

P. Zhao, R.A. Holt

Keywords:

Electron Backscatter Diffraction (EBSD), Extrusion, Microstructure, Microtexture, Zr-2.5Nb Tubes

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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Citation:

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DOI: 10.1520/stp16195s

[8] R.A. Holt and P. Zhao, accepted for publication in J. Nulclear Mat., (2004).

[9] M. Griffiths, C.K. Chow, C.E. Coleman, R.A. Holt, S. Sagat and V.F. Urbanic: Proc. 16th International Symposium on Effects of Radiation on Materials. ASTM STP 1175 (1993), p.1077.

DOI: 10.1520/stp23991s

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