TY JOUR TI FORMATION BY MECHANICAL ALLOYING Ti-Al COATINGS WITH COBALT AND NICKEL ADDITIVES KW alloying KW isothermal heating KW titanium aluminides KW coating KW micro-hardness JO Bulletin of Bryansk state technical university AU Pyachin, S.A. AU Vlasova, N.M. AU Kulik, M.A. AU Krutikova, V.O. PY 2021 IS 2021 PB Bryansk State Technical University