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Towards an integration of flow behaviour and microstructural evolution during superplastic deformation of microduplex alloys

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Field Value
 
Title Towards an integration of flow behaviour and microstructural evolution during superplastic deformation of microduplex alloys
 
Creator KASHYAP, BP
 
Subject high-temperature deformation
cu eutectic alloy
duplex stainless-steels
zn-22 pct al
grain-growth
zn-22-percent-al alloy
inter-crystalline
pb-62-percent sn
cavitation
state
superplasticity
microduplex
flow behaviour
grain growth
cavitation
diffusion
 
Description Superplastic behaviour and concurrent microstructural evolution in microduplex alloys are reviewed to bring out the following less common trends reported in the literature. An anomaly exists about the shape of the log (stress)-log (strain rate) curves and the parameters of the constitutive relationship. Also, some microduplex alloys exhibit two values of activation energy for superplastic deformation with a lower value at T less than or similar to 0.8T(m). The ratio of the two activation energies is approximately equal to 0.55. The co-existing two phases and the alpha/alpha, alpha/beta and beta/beta boundaries contribute differently to deformation and cavitation, but grain coarsening occurs in a concerted manner.
 
Publisher TRANSTEC PUBLICATIONS LTD
 
Date 2011-10-24T05:43:12Z
2011-12-15T09:11:30Z
2011-10-24T05:43:12Z
2011-12-15T09:11:30Z
1997
 
Type Article; Proceedings Paper
 
Identifier SUPERPLASTICITY IN ADVANCED MATERIALS - ICSAM-97,243-,453-461
0-87849-759-5
0255-5476
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15341
http://hdl.handle.net/100/2109
 
Source 1997 International Conference on Superplasticity in Advanced Materials (ICSAM-97),BANGALORE, INDIA,JAN 29-31, 1997
 
Language English