Microstructure Refinement and Texture Evolution of Titanium by Friction Roll Surface Processing

作者：Shi Meiqin; Takayama Yoshimasa^*; Umetsu Tomohiro; Kato Hajime; Watanabe Hideo; Inoue Hirofumi

来源：Materials Transactions, 2009, 50(1): 210-214.

DOI：10.2320/matertrans.MER2008294

• texture
• titanium
• severe plastic deformation
• electron back-scatter diffraction
• friction roll surface processing

Friction roll surface processing (FRSP), as a novel severe plastic deformation technique, has been put forward and experimentally investigated. Commercial pure titanium sheets were subjected to FRSP and subsequent annealing. An extremely large strain was imposed on the surface layer of the sheet. Consequently, a uniform ultrafine-grained microstructure with a grain size of approximately 80 nm and a deformation texture were obtained in the surface layer. The FRSP texture was found to be strongly related to the processing direction. The evolution of texture during annealing was also investigated. The texture analysis revealed that new preferred orientations could be developed during FRSP. [doi: 10.2320/matertrans.MER2008294]

• 出版日期2009-1