C

  


 

Cherkharova Nataliya Ivanovna, Candidate of Engineering Science, Chita Institute of the Baikal State University of Economics and Law (Chita, Russia), e-mail: Cherharova_n_i@mail.ru

 

Chernyshova Tatyana Aleksandrovna, Doctor of Engineering Science, Professor, Baykov Institute of Metallurgy and Material Science, Russian Academy of Sciences (Moscow,Russia),e-mail:chern@imet.ac.ru