Grain structure and microtexture in friction stir welded commercial purity titanium

Y. Zhang, Yutaka Sato, Hiroyuki Kokawa, S. H.C. Park, S. Hirano

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Defect free friction stir welds were produced in commercial purity titanium at rotational speeds between 200 and 400 rev min-1. Friction stir welding produced a finer grain structure in the stir zone than in the base material. Electron backscattered diffraction examination suggested that the fine grains in the stir zone were formed through both continuous and discontinuous recrystallisation during friction stir welding. A torsion texture was observed in all welds and occupied most parts of the stir zone. Formation of this texture was attributed to the shear deformation along the tool shoulder during the stirring process.

Original languageEnglish
Pages (from-to)500-505
Number of pages6
JournalScience and Technology of Welding and Joining
Issue number6
Publication statusPublished - 2010 Aug 1


  • Commercial purity titanium
  • Friction stir welding
  • Grain structure
  • Microtexture

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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