In situ observation of texture and microstructure evolution during rolling and globularization of Ti-6Al-4V

Jonnathan L W Warwick, Nicholas G. Jones, Ioannis Bantounas, Michael Preuss, David Dye

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

The evolution of texture in β-annealed Ti-6Al-4V during α-β rolling and so-called recrystallization annealing has been examined using synchrotron X-ray diffraction and ex situ characterization. During rolling, the initial α (0 0 0 2) texture softens and the colony α becomes kinked. During globularization, the texture strengthens as highly strained (and hence misoriented) areas of the laths disappear and this strengthening continues once coarsening of the primary α becomes dominant. At shorter heat treatment times the αs laths that form on cooling do so with a range of variant-related orientations to the β, but at longer annealing times this αs takes on the orientation of the surrounding αp. The implications for the mechanical performance of macrozone-containing bimodal Ti-6Al-4V material are discussed. © 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Original languageEnglish (US)
Pages (from-to)1603-1615
Number of pages13
JournalActa Materialia
Volume61
Issue number5
DOIs
StatePublished - Mar 2013

ASJC Scopus subject areas

  • Polymers and Plastics
  • Metals and Alloys
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

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