The evolution of microtexture and macrotexture during subtransus forging of Ti-10V-2Fe-3Al

S.L. Raghunathan, R.J. Dashwood, M. Jackson, S.C. Vogel, D. Dye

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Abstract

The macrotextures and microtextures produced during View the MathML source forging of Ti–10V–2Fe–3Al were characterised using neutron, in situ synchrotron X-ray and ex situ electron backscatter diffraction (EBSD). The EBSD analysis showed that the measured misorientation distributions at a strain of 0.8 and strain rates of 0.1 and View the MathML source were similar, with an average misorientation of 2.2°. During forging, the moderate cube macrotexture inherited from the parent material was converted into a moderate fibre texture, with the major change occurring between strains of 0.4 and 0.6. The synchrotron diffraction studies allowed the orientation evolution of individual grains to be characterised. At the highest strain rate of View the MathML source, this indicated a change in behaviour from dispersion of the crystal mosaic (peak angular spread) at low strains, to convergence of the crystal mosaic at larger strains. At lower strain rates, only convergence of the crystal mosaic was observed. It is suggested that these results indicate a change in mechanism between deformation-controlled behaviour during the early stages of deformation and a strain rate of View the MathML source and diffusional, recovery-controlled behaviour at lower strain rates and higher strains.
Original languageEnglish
Pages (from-to)8-15
Number of pages8
JournalMaterials Science and Engineering A
Volume488
Issue number1-2
Early online date4 Nov 2007
DOIs
Publication statusPublished - 15 Aug 2008

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Keywords

  • Titanium alloys
  • Neutron diffraction
  • X-ray diffraction
  • Plastic deformation
  • Texture

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