Record Details

Flow behaviour of a modified Zr-2.5wt%Nb pressure tube alloy

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Flow behaviour of a modified Zr-2.5wt%Nb pressure tube alloy
 
Creator SINGH, RN
MUKHERJEE, S
KISHORE, R
KASHYAP, BP
 
Subject wt-percent nb
zirconium alloys
serrated flow
deformation
evolution
microstructure
model
 
Description Anisotropy in flow behavior of cold worked and stress-relieved Zr-2.5wt%Nb pressure tube alloy was characterized by performing tensile tests in the temperature range of 298-823 K and under a constant nominal strain-rate of similar to 3 x 10(-4) s(-1). Results showed that both yield and ultimate tensile strengths of this alloy decreased gradually with increasing test temperatures, with a rapid fall in strengths above it temperature of 623 K. The tensile ductility did not change appreciably up to 673 K but increased rapidly above this temperature. A strain energy model was developed to explain the occurrence of dynamic strain ageing (DSA). Analysis of the true stress strain behavior suggested that the flow hardening or softening behavior of this alloy can be expressed in the form of a constitutive relationship comprising of a constant, work-hardening term and a term representing flow softening due to recovery. (c) 2005 All, rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-25T02:34:45Z
2011-12-26T12:49:23Z
2011-12-27T05:40:33Z
2011-07-25T02:34:45Z
2011-12-26T12:49:23Z
2011-12-27T05:40:33Z
2005
 
Type Article
 
Identifier JOURNAL OF NUCLEAR MATERIALS, 345(40604), 146-161
0022-3115
http://dx.doi.org/10.1016/j.jnucmat.2005.05.008
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6611
http://hdl.handle.net/10054/6611
 
Language en