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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/9919

Title: Texture evolution in two phase Zr-2.5 wt-%Nb through modified route
Authors: KAPOOR, K
LAHIRI, D
RAO, SVR
SANYAL, T
SAIBABA, N
KASHYAP, BP
Keywords: pressure tubes
alloys
temperature
working
Issue Date: 2004
Publisher: MANEY PUBLISHING
Citation: MATERIALS SCIENCE AND TECHNOLOGY, 20(10), 1281-1289
Abstract: Two phase Zr - 2(.)5 wt-%Nb is used as pressure tube material in water cooled and moderated reactors. The in service behaviour of this hcp zirconium based alloy is dependent on strong textures developed during thermomechanical processing. In the present study, the texture evolution during fabrication of this material, using a modified route, was investigated. Texture, evaluated by the orientation distribution function, was correlated to microstructure during various stages of processing. It was observed that a strong orientation fibre parallel to the working direction develops with hot working (extrusion). With subsequent cold working, the texture formed after extrusion alone becomes strengthened. This observation is attributed to the presence of a soft secondary phase (beta) at the alpha phase grain boundary. In contrast to the above, in the case of single phase Zircaloy 4, new components of texture are generated with cold deformation after hot extrusion, as a result of interaction between grains.
URI: http://dx.doi.org/10.1179/026708304225022052
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9919
http://hdl.handle.net/10054/9919
ISSN: 0267-0836
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