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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/5306

Title: Effect of cold working and annealing on grain size and hardness of a Zr-2.5Nb alloy
Authors: KASHYAP, BP
PATHAK, R
KISHORE, R
FOTEDAR, R
SINHA, TK
Keywords: zr-nb alloys
titanium-alloys
deformation
diffusion
behavior
strength
texture
growth
tubes
Issue Date: 1998
Publisher: CARL HANSER VERLAG
Citation: ZEITSCHRIFT FUR METALLKUNDE, 89(4), 303-310
Abstract: Samples of Zr-2.5 wt.% Nb alloy, obtained from pressure tube, were annealed in the temperature range 700-900 degrees C up to 100 h to investigate the grain growth behaviour. The grain size increases with annealing time (t) and temperature (T) according to the relationship d proportional to t(0.21) exp((-387 kJ/mol)/RT). Room temperature hardness increases with the increasing annealing temperature and grain size, which is ascribed to the transformation of beta-phase into martensitic alpha' and the substructure developed during quenching. The grain sizes, produced by further cold working and annealing for short time (< 1 h), and the corresponding hardness values, however, support the Hall-Fetch type relationship in the limited cases.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/5306
http://hdl.handle.net/10054/5306
ISSN: 0044-3093
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