Evolution of texture in Zr and Ti grain-refined by ECAP

S. H. Yu, D. H. Shin, N. J. Park, M. Y. Huh, S. K. Hwang

Research output: Contribution to journalConference articlepeer-review

14 Citations (Scopus)


Equal channel angular pressing (ECAP) was employed to grain refine Zr702 and CP Ti and the texture evolution during deformation was analyzed. With a use of die of 90°/20° in the intersection angles it was possible to refine the initial grain size of about 20μm to about 250nm at 350°C. The common feature of crystal rotation during ECAP was such that the 〈112̄0〉 direction of the basal plane as well as that of the prism planes aligned with the maximum shear direction on the shear plane of specimen. Activation of the primary slip systems and the resultant texture characteristics were independent to the initial textures, which were radically different in the two materials. In case of CP Ti a possible activation of twinning was also detected. Therefore the large plastic strain during ECAP of these two hcp metals was accommodated mostly by the 〈a〉 slips on the dual slip planes and in part by twinning.

Original languageEnglish
Pages (from-to)661-666
Number of pages6
JournalMaterials Science Forum
Issue numberI
Publication statusPublished - 2002
EventProceedings of the 13th International Conference on Textures of Materials - Seoul, Korea, Republic of
Duration: 2002 Aug 262002 Aug 30


  • Dual Slip
  • ECAP
  • Pole Figures
  • Ti
  • Zr

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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