1. Częstochowa University of Technology, Faculty of Production Engineering and Materials Technology, Institute of Materials Engineering, al. Armii Krajowej 19, 42-200 Częstochowa, Poland
2. University of Warmia and Mazury in Olsztyn, Faculty of Mathematics and Computer Science, Department of Relativistic Physics, Olsztyn, Poland
3. University of Warmia and Mazury in Olsztyn, Faculty of Technical Sciences, Department of Materials Technology and Machines, Olsztyn, Poland