1. Institute of Metals Superplasticity Problems RAS, 39 Khalturin St. Ufa 450001 Russian Federation
2. Donetsk Institute for Physics and Engineering named after O.O. Galkin National Academy of Sciences of Ukraine Kyiv 03028 Ukraine
3. Institute of Physics of Advanced Materials Ufa State Aviation Technical University 12 K. Marx St. Ufa 450008 Russian Federation
4. Laboratory for Mechanics of Bulk Nanomaterials Saint Petersburg State University 28 Universitetskiy pr., Peterhof St. Petersburg 198504 Russia