Record Details

Texture evolution in two phase Zr-2.5 wt-%Nb through modified route

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Texture evolution in two phase Zr-2.5 wt-%Nb through modified route
 
Creator KAPOOR, K
LAHIRI, D
RAO, SVR
SANYAL, T
SAIBABA, N
KASHYAP, BP
 
Subject pressure tubes
alloys
temperature
working
zr-2.5 wt-%nb
zircaloy 4
texture
odf
 
Description 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.
 
Publisher MANEY PUBLISHING
 
Date 2011-08-18T07:07:25Z
2011-12-26T12:55:37Z
2011-12-27T05:41:34Z
2011-08-18T07:07:25Z
2011-12-26T12:55:37Z
2011-12-27T05:41:34Z
2004
 
Type Article
 
Identifier MATERIALS SCIENCE AND TECHNOLOGY, 20(10), 1281-1289
0267-0836
http://dx.doi.org/10.1179/026708304225022052
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9919
http://hdl.handle.net/10054/9919
 
Language en