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Defining recrystallization in pilgered Zircaloy-4: From preferred nucleation to growth inhibition

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Title Defining recrystallization in pilgered Zircaloy-4: From preferred nucleation to growth inhibition
 
Creator HIWARKAR, VD
SAHOO, SK
SAMAJDAR, I
SATPATHY, A
KRISHNA, KVM
DEY, GK
SRIVASTAV, D
TEWARI, R
BANARJEE, S
 
Subject DELAYED HYDRIDE CRACKING
PRESSURE TUBES
CUBE TEXTURE
ZIRCONIUM ALLOYS
IF-STEEL
DEFORMATION
PRECIPITATION
FABRICATION
ORIENTATION
MECHANISMS
 
Description Pilgered Zircaloy-4 was subjected to recrystallization annealing at 650 degrees C: temperature sufficient for primary recrystallization but inadequate for noticeable competitive grain coarsening. Associated microstructural developments were monitored through bulk and microtexture measurements. The deformed microstructure had two, generalized, types of grains: fragmenting/deforming and non-fragmenting/non-deforming. The former had higher stored energy of cold work and defined the early recrystallization stages through preferred nucleation. Non-fragmenting grains, on the other hand, did not contribute directly to recrystallization: but provided significant growth inhibition or pinning to the recrystallized grains. A combination of these two mechanisms defined the recrystallization behavior of pilgered Zircaloy-4. (C) 2011 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2012-06-26T07:21:34Z
2012-06-26T07:21:34Z
2011
 
Type Article
 
Identifier JOURNAL OF NUCLEAR MATERIALS,412(3)287-293
0022-3115
http://dx.doi.org/10.1016/j.jnucmat.2011.02.043
http://dspace.library.iitb.ac.in/jspui/handle/100/14122
 
Language English