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K. V. Smyrnova,A. D. Pogrebnjak,V. M. Beresnev,S. V. Litovchenko,S. O. Borba‑Pogrebnjak,A. S. Manokhin,S. A. Klimenko,B. Zhollybekov,A. I. Kupchishin,Ya. O. Kravchenko,O. V. Bondar 대한금속·재료학회 2018 METALS AND MATERIALS International Vol.24 No.5
Nanostructured multicomponent (TiAlSiY)N coatings were fabricated by the cathodic-arc physical vapor deposition (CAPVD). In this study, a bias potential applied to the substrate was − 200 and − 500 V, and changes in structure and propertiesof coatings were investigated. Samples had a single-phase state with a face-centered cubic (FCC) lattice. Small crystallitesof about 7.5 nm and texture with [110] axis were observed at − 500 V. However, lower bias potential resulted in the formationof crystallites of about 41.6 nm with [111] preferred orientation. Moreover, coatings were characterized by superhardstate and demonstrated low wear, high abrasion and crack resistance. The testing of the polycrystalline cubic boron nitride(PCBN) cutting inserts covered with (TiAlSiY)N revealed an increase in the tool life coeffi cient during cutting by 1.66times in comparison with the base tool material. Therefore, (TiAlSiY)N coating is a perspective material for application asa protective layer in cutting tools.