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Influence of bias potential on the tribological behavior and physical-mechanical properties of TiAlSiY-based nanostructured coatings
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Paper Abstract

Nanostructured multicomponent (TiAlSiY)N coatings were fabricated by the vacuum-arc cathodic evaporation (CAPVD). The bias potential was -200 V and -500 V during the deposition process. The nanograin structure with small average crystallite size of about 7.5 nm and [110] preferred orientation were observed in the coatings deposited at high substrate bias (-500 V). Crystallites of about 41.6 nm in size and a preferred orientation with [111] axis were formed in coatings when the bias was -200 V. In this case, the nanostructured coating demonstrated the maximum hardness H = 49.5 GPa (superhardness). Additionally, the studied samples exhibited high abrasion and crack resistance, low wear at tribological tests. The testing of a polycrystalline cubic boron nitride (PCBN) cutter plate covered with (TiAlSiY)N coating fabricated at -200 V revealed an increase in the coefficient of resistance during cutting by 1.66 times in comparison with the base tool material.

Paper Details

Date Published: 31 December 2018
PDF: 10 pages
Proc. SPIE 10977, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IX, 109771M (31 December 2018); doi: 10.1117/12.2324921
Show Author Affiliations
Vitalii Bondariev, Lublin Univ. of Technology (Poland)
Aleksander Pogrebnjak , Sumy State Univ. (Ukraine)
V. M. Beresnev, Sumy State Univ. (Ukraine)
S. V. Litovchenko, Sumy State Univ. (Ukraine)
S. O. Borba-Pogrebnjak, Sumy State Univ. (Ukraine)
K. V. Smyrnova, Sumy State Univ. (Ukraine)

Published in SPIE Proceedings Vol. 10977:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IX
Marian Vladescu; Razvan D. Tamas; Ionica Cristea, Editor(s)

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