Paper Title:
Modelling the High Temperature Deformation of Ti-6Al-4V
  Abstract

The hot deformation behaviour of the alpha / beta Ti-6Al-4V alloy was investigated at various temperatures and strain rates by means of compression and torsion tests. As expected, the peak flow stress increased with increasing strain rate and decreased as the initial sample temperature was increased. The different flow behaviours observed are discussed in terms of the volume fraction of each phase. The dual phase Ti-6Al-4V alloy was assumed to be a composite material containing a soft phase and a hard phase. By taking into consideration the phase-to-phase interaction and volume fraction change with temperature, constitutive models are proposed to simulate the deformation behaviours. By application of the rule of mixtures the modelled yield stresses showed good agreement with the experiment results.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
879-882
DOI
10.4028/www.scientific.net/MSF.654-656.879
Citation
J. K. Zhong, M. S. Dargusch, C. H.J. Davies, "Modelling the High Temperature Deformation of Ti-6Al-4V", Materials Science Forum, Vols. 654-656, pp. 879-882, 2010
Online since
June 2010
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Price
$32.00
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