Comparative Study of Nanostructured Multilayer Cr/(Cr/a-C)ml Coatings Deposited on HS6-5-2 Steel by Magnetron Sputtering. - Dimitrova, Rayna; Petrov, Krum; Sofronov, Yavor; Mishev, Valentin; Angelov, Milko; Tzaneva, Boriana; Dochev, Boyan; Nikolov, Antonio; Yordanov, Milko; Marchev, Krassimir (Materials (1996-1944), 2026)