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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6478

Title: Deformed microstructures of two-phase Zr-2.5Nb alloy: Effects of the second phase hardness
Authors: SAHOO, SK
HIWARKAR, VD
JAIN, L
SAMAJDAR, I
PANT, P
DEY, GK
SRIVASTAV, D
TEWARI, R
BANERJEE, S
Keywords: zirconium-niobium alloys
plastic-deformation
martensitic transformation
base alloys
zircaloy 2
zr
evolution
absence
strain
energy
Issue Date: 2010
Publisher: ELSEVIER SCIENCE BV
Citation: JOURNAL OF NUCLEAR MATERIALS, 404(3), 222-230
Abstract: 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. .
URI: 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
ISSN: 0022-3115
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