D. I. Ivanov
Lebedinskii Mining and Processing Works, Gubkin-11; Stary Oskol Technological Institute of National University of Science and Technology “MISiS”
Russian Federation

Technologist;

Postgraduate

A. A. Kozhukhov
Stary Oskol Technological Institute of National University of Science and Technology “MISiS”
Russian Federation

Cand. Sci. (Eng.), Assist. Professor, Head of the Chair “Metallurgy and Metal Science named after S.P. Ugarova”,

Stary Oskol

L. F. Urazova
Stary Oskol Technological Institute of National University of Science and Technology “MISiS”
Russian Federation

Senior Lecturer of the Chair “Metallurgy and Metal Scien ce named after S.P. Ugarova”,

Stary Oskol