Affiliation: | 1. Institute for Materials Testing, Materials Science and Strength of Materials, University of Stuttgart, Pfaffenwaldring 32, 70569 Stuttgart, Germany;2. Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, Tomsk 2/4 Akademicheskii Av., 634055 Tomsk, Russian Federation;3. Donetsk Institute of Physics and Engineering, National Academy of Sciences, Kiev, Nauki Ave. 46, 03680 Donetsk, Ukraine |