Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18213
Title: Determination of instability in Zr-2.5Nb-0.5Cu using Lyapunov function
Authors: Saxena K.K.
Pancholi, Vivek
Srivastava D.
Dey G.K.
Jha S.K.
Saibaba N.
Narayanan P.R.
Murty S.V.S.
Published in: Proceedings of Materials Science Forum
Abstract: Hot workability of Zr-2.5Nb-0.5Cu alloy has been investigated by means of hot compression test using Gleeble-3800®, in the temperature and strain rate range of 700 to 925°C and 0.01 -10s-1, respectively. Deformation behavior was characterized in terms of flow instability using peak stress with the help of Lyapunov Function. The true stress- strain curves shows that softening occurs at all lower temperature and for entire strain rates of deformation. The instable flow was suggested by negative m value at deformation condition of 700°C (5 and 10 s-1), while s value at 925°C (10 s-1). The combined result of rate of change of m and s with respect to log strain rate suggest that the deformation condition ranges from 725- 780°C (10-1- 10-1 s-1) and 700°C (1- 10 s-1) representing safe domain for stable flow. © (2015) Trans Tech Publications, Switzerland.
Citation: Proceedings of Materials Science Forum, (2015), 329- 332
URI: https://doi.org/10.4028/www.scientific.net/MSF.830-831.329
http://repository.iitr.ac.in/handle/123456789/18213
Issue Date: 2015
Publisher: Trans Tech Publications Ltd
Keywords: Flow instability
Hot deformation
Lyapunov function
Zr-2.5Nb-0.5Cu
ISBN: 9.78E+12
ISSN: 2555476
Author Scopus IDs: 56612928200
14071738800
57196741375
7006913459
56711611100
11339957900
Author Affiliations: Saxena, K.K., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
Pancholi, V., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
Srivastava, D., Materials Science Division, Bhabha Atomic Research Center, Mumbai, 40085, India
Dey, G.K., Materials Science Division, Bhabha Atomic Research Center, Mumbai, 40085, India
Jha, S.K., Nuclear Fuel Complex Limited, Hyderabad, 501301, India
Saibaba, N., Nuclear Fuel Complex Limited, Hyderabad, 501301, India
Corresponding Author: Pancholi, V.; Department of Metallurgical and Materials Engineering, Indian Institute of TechnologyIndia; email: vivekfmt@iitr.ac.in
Appears in Collections:Conference Publications [MT]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.