Authors
Zbigniew Siemiątkowski
Institute of Machinery Engineering, University of Technology and Humanities in Radom, 54 Krasickiego Str., 26-600, Radom, Poland
Małgorzata Gzik-Szumiata
Department of Physics, University of Technology and Humanities in Radom, 54 Krasickiego Str., 26-600, Radom, Poland
Tadeusz Szumiata
Department of Physics, University of Technology and Humanities in Radom, 54 Krasickiego Str., 26-600, Radom, Poland
Mirosław Rucki
Institute of Machinery Engineering, University of Technology and Humanities in Radom, 54 Krasickiego Str., 26-600, Radom, Poland
Robert Martynowski
CELSA Huta Ostrowiec Sp. z o.o., Forge Division, 2 Samsonowicza Str., 27-400, Ostrowiec Świętokrzyski, Poland