| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1502766 | Scripta Materialia | 2008 | 4 Pages |
Abstract
Pure nanocrystalline Zr with a grain size of 30 nm and a microhardness of 400 HV has been fabricated by high-pressure torsion (HPT) at room temperature using a pressure of 6 GPa and five revolutions in 5 min. Complete transformation and significant refinement from the initial coarse-grained α-phase to the high-pressure ω-phase occurs during processing. The omega nanocrystalline phase is stable at room temperature and atmospheric pressure. The shear strain applied enhances the transformation kinetics.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
M.T. Pérez-Prado, A.A. Gimazov, O.A. Ruano, M.E. Kassner, A.P. Zhilyaev,