1. Czestochowa University of Technology, Faculty of Production Engineering and Materials, Department of Metallurgy and Metal Technology, 42-200 Czestochowa, Poland
2. Poznan University of Technology, Faculty of Mechanical Engineering, Institute of Materials Technology, Division of Foundry and Plastic Working,60-965 Poznan, Poland
3. Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Department of Mechanics and Machine Design Fundamentals, 42-200 Czestoch owa, Poland
4. AGH University of Kraków, Faculty of Foundry Engineering, Department of Foundry, Al . Mickiewicza 30, 30-059 Krakow, Poland