Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/100/1156
Title: Positron annihilation study of recrystallization behaviour in Zr2.5%Nb alloy
Authors: MULKI, S
PUJARI, PK
SRIVASTAVA, D
SAMAJDAR, I
DEY, GK
HIWARKAR, VD
SHARMA, S
Keywords: Zirconium
Cracking
Issue Date: 2009
Publisher: WILEY-V C H VERLAG GMBH
Citation: PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 11,6(11)2352-2354
Abstract: In CANDU reactors Zr 2.5%Nb alloy is used as pressure tube material due to low neutron absorption cross section, a high resistance to corrosion in water, high strength and good creep resistance. The two phase alloy consists of alpha-fcc anb beta-bcc. The recrystallization behavior of Zr2.5Nb strongly depends on morphology and distribution of second phase. In this study, the material was deformed to 60% and then was recrystallized in alpha + beta region for different duration (i.e. 2 minutes to 14 days at 700 degrees C). The recrystallized microstructure was characterized by Orientation Imaging Microscopy (OIM). The evolution of microstructures was examined by Positron Lifetime Spectroscopy and Doppler Broadening measurement for each heat treated samples. Results from positron anhilation studies and other microstructural examination have been used to rationalize the recrystallization aspects, defects and beta-phase distribution. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI: http://dx.doi.org/10.1002/pssc.200982140
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14664
http://hdl.handle.net/100/1156
ISSN: 1610-1634
Appears in Collections:Proceedings papers

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