1. VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, ondrej.hilser@vsb.cz, stanislav.rusz@vsb.cz, miroslav.greger@vsb.cz
2. Silesian University of Technology, Faculty of Mechanical Technology, Institute of Engineering Materials and Biomaterials, Gliwice, Poland, EU, przemyslaw.snopinski@polsl.pl, tomasz.tanski@polsl.pl
3. Polish Academy of Science, Institute of Metallurgy and Materials Science, Department of Functional and Structural Materials, Krakow, Poland, EU, w.maziarz@imim.pl, k.stan@imim.pl