Nanocrystalline Ti Produced by Cryomilling and Consolidation by Severe Plastic Deformation
Irina Semenova,
Ilana Timokhina,
Rinat Islamgaliev,
Enrique Lavernia,
Ruslan Valiev
Affiliations
Irina Semenova
Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12 K. Marx str., Ufa 450000, Russia
Ilana Timokhina
Institute for Frontier Material, Geelong Technology Precinct, Deakin University, 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia
Rinat Islamgaliev
Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12 K. Marx str., Ufa 450000, Russia
Enrique Lavernia
Department of Chemical Engineering and Materials Science, University of California, Davis, CA 95616, USA
Ruslan Valiev
Laboratory for Mechanics of Bulk Nanostructured Materials, Saint Petersburg State University, Universitetsky pr. 28, Peterhof 198504, Saint Petersburg, Russia
We report on a study of the nanocrystalline structure in Ti, which was produced by cryogenic milling followed by subsequent consolidation via severe plastic deformation using high pressure torsion. The mechanisms that are believed to be responsible for the formation of grains smaller than 40 nm are discussed and the influence of structural characteristics, such as nanometric grains and oxide nanoparticles, on Ti hardening is established.
