Paper Title:
FEM Modelling of Recrystallization Behaviour for Near-Alpha Ti Alloy IMI834
  Abstract

The recrystallization behaviour of near-alpha titanium alloy IMI834, which is primarily used for high temperature aerospace compressor disc applications, has been investigated at hot working temperatures. The latest results of a finite element model, developed using the commercial code DEFORM-3D with constitutive equations adapted from available literature, will be presented. Model development and validation involved the hot compression of specimens with an initial bimodal alpha+beta microstructure at temperatures of 1000°C-1100°C, strain rates of 0.01s 1-1s 1, and varied post-deformation annealing times. The characterization of microstructure through quantitative metallography revealed beta grain refinement achieved primarily through static/metadynamic recrystallization. The beta recrystallization kinetics were subsequently predicted through an Avrami-type relationship.

  Info
Periodical
Advanced Materials Research (Volumes 89-91)
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
592-597
DOI
10.4028/www.scientific.net/AMR.89-91.592
Citation
P. Vo, M. Jahazi, S. Yue, "FEM Modelling of Recrystallization Behaviour for Near-Alpha Ti Alloy IMI834", Advanced Materials Research, Vols. 89-91, pp. 592-597, 2010
Online since
January 2010
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Price
$32.00
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