1. Department of Mechanical Technologies and Materials; Faculty of Mechanical Engineering; Technical University; Mäsiarska 74 040 01 Košice Slovakia
2. Faculty of Electrical Engineering and Information Technology; Slovak University of Technology; Ilkovičova 3 812 19 Bratislava Slovakia
3. Institute of Materials Research; Slovak Academy of Sciences; Watsonova 47 043 53 Košice Slovakia
4. Department of Industrial Engineering and Management; Faculty of Mechanical Engineering; Technical University; Nemcovej 32 042 00 Košice Slovakia
5. Institute of Materials Science and Engineering; Lodz University of Technology; Stefanowskiego 1/15 90 924 Łódz Poland