Affiliation: | 1. Institute of Mechanics, Bulgarian Academy of Sciences Acad. G. Bonchev Str. Bl. 4 1113 Sofia (Bulgaria);2. Max‐Planck‐Institut für Eisenforschung Max‐Planck Str. 1, 40237 Düsseldorf (Germany);3. Department of Materials Science and Engineering MIT, 77 Massachusetts Ave, Cambridge, MA 02139‐4307 (USA) |