Influence of post-deformation on CP-Ti processed by equal channel angular pressing

Author(s)
V.V. Stolyarov, L Zeipper, Bernhard Mingler, Michael Zehetbauer
Abstract

Ultrafine-grained (UFG) sheets of commercially pure (CP)-Ti were produced by equal channel angular pressing (ECAP), by ECAP plus subsequent rolling as a post-deformation and, for comparison, by rolling only, from coarse-grained (CG) billets. It was found that post-deformation of ECAPed CP-Ti by rolling achieves a higher strength with still considerable ductility, and a higher thermal stability compared with the sample's properties after ECAP deformation and/or rolling solely. Transmission electron microscopy investigations revealed that the post-deformed material has a finer and much more homogeneous microstructure than the rolled CG material. Besides, it was shown that the workability of ECAPed Ti depends on the purity.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
Russian Academy of Sciences, Austrian Research Centers GmbH (ARC Seibersdorf)
Journal
Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing
Volume
476
Pages
98-105
No. of pages
8
ISSN
0921-5093
DOI
https://doi.org/10.1016/j.msea.2007.04.069
Publication date
2008
Peer reviewed
Yes
Austrian Fields of Science 2012
103023 Polymer physics, 210006 Nanotechnology, 103018 Materials physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/influence-of-postdeformation-on-cpti-processed-by-equal-channel-angular-pressing(baff3466-7001-4e97-a128-b03ed30b8cda).html