1. V. V. Berdin and V. I. Kolmikov, Vestnik of Kursk State Agricultural Academy 2, 77–79 (2011).
2. V. V. Ovchinnikov, Heat treatment technology (Moscow, Forum, 2013), p. 235.
3. V. M. Belokon, Bulletin Belarusian-Russian University 2, 54–61 (2009).
4. A. V. Krukov and N. V. Pavlov, Modern problems of science and education 6, (2014).
5. E. G. Zemcova, P. E. Morozov, R. Z. Valiev, and V. M. Smirnov, Materials Phys. Mech. 24, 129–138 (2015).