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Deformed microstructures of two-phase Zr-2.5Nb alloy: Effects of the second phase hardness

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Title Deformed microstructures of two-phase Zr-2.5Nb alloy: Effects of the second phase hardness
 
Creator SAHOO, SK
HIWARKAR, VD
JAIN, L
SAMAJDAR, I
PANT, P
DEY, GK
SRIVASTAV, D
TEWARI, R
BANERJEE, S
 
Subject zirconium-niobium alloys
plastic-deformation
martensitic transformation
base alloys
zircaloy 2
zr
evolution
absence
strain
energy
 
Description Two types, A and B, of Zr-2.5Nb samples were subjected to compression tests. Both samples consisted of similar microstructure - hexagonal closed packed (hcp) alpha phase (the primary phase) and grain boundary bcc (body centered cubic) beta phase. However, the hardness of the beta phase differed between the samples respectively being hard (sample A) and soft (sample B) relative to the primary phase. This difference was caused by the presence of fine to precipitates. The relative hardness of beta phase determined almost all aspects of deformed microstructure developments. In sample A, the primary phase had higher lattice strain and in-grain misorientation developments. In sample B, on the other hand, the softer beta phase was clearly linked to more deformation twinning and associated grain size refinement and 'texturing' of the hcp a phase. .
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-24T16:34:43Z
2011-12-26T13:02:51Z
2011-12-27T05:50:03Z
2011-07-24T16:34:43Z
2011-12-26T13:02:51Z
2011-12-27T05:50:03Z
2010
 
Type Article
 
Identifier JOURNAL OF NUCLEAR MATERIALS, 404(3), 222-230
0022-3115
http://dx.doi.org/10.1016/j.jnucmat.2010.07.028
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6478
http://hdl.handle.net/10054/6478
 
Language en