1. Department of Materials Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
2. LKR Light Metals Technologies Ranshofen, Austrian Institute of Technology, Lamprechtshausenerstrasse 61, 5282 Ranshofen, Austria
3. Research Centre, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia