Research on the Properties of Multilayer Nitride CrN/NbN Coatings Using Acoustic Emission Parameters. Pt. 2. Multilayer CrN/NbN Coatings with Bilayer Thickness of 67 nm
I. V. Serdyuk$^{1}$, S. I. Petrushenko$^{2,3}$, V. O. Stolbovyy$^{1,4}$, M. Fialkowsky$^{3}$
$^{1}$National Science Centre ‘Kharkiv Institute of Physics and Technology’, N.A.S. of Ukraine, 1 Akademichna Str., UA-61108 Kharkiv, Ukraine
$^{2}$V. N. Karazin Kharkiv National University, 4 Svobody Sqr., UA-61022 Kharkiv, Ukraine
$^{3}$Technical University of Liberec, Studentska 1402/2, 46117 Liberec 1, Czech Republic
$^{4}$Kharkiv National Automobile and Highway University, 25 Yaroslava Mudrogo Str., UA-61002 Kharkiv, Ukraine
Received: 27.05.2025; final version - 10.10.2025. Download: PDF
The investigation of the properties of the vacuum-arc multilayer nitride CrN/NbN coatings with 270 layers and bilayer thickness of 67 nm is performed using a method of acoustic emission. The investigation is conducted using scratch testing and microscopic visual observation of scratches. Methods for statistical data analysis of acoustic emission are applied for comparing the properties of multilayer CrN/NbN coatings obtained at different technological parameters of deposition (the constant negative voltage on the substrate of 70−200 V and the nitrogen pressure in vacuum chamber of 0.08−0.27 Pa). Several parameters of acoustic emission (the maximum pulse amplitude, the average value, the median value, the mode value, the number of pulses, and the amplitude sum of all acoustic-emission pulses) are calculated for each coating. The studied parameters are calculated on four scratches for each multilayer coating. The influence of deposition technological parameters on the structure deformation processes of multilayer CrN/NbN coatings with 270 layers and bilayer thickness of 67 nm occurred during scratch testing is determined.
Key words: multilayer coatings, cathodic arc evaporation, acoustic emission, deformation, methods for statistical data analysis, coating embrittlement.
URL: https://mfint.imp.kiev.ua/en/abstract/v47/i10/1043.html
DOI: https://doi.org/10.15407/mfint.47.10.1043
PACS: 43.35.Zc, 43.40.Le, 68.35.Iv, 68.60.Bs, 68.65.Ac, 81.15.-z, 81.70.Cv
Citation: I. V. Serdyuk, S. I. Petrushenko, V. O. Stolbovyy, and M. Fialkowsky, Research on the Properties of Multilayer Nitride CrN/NbN Coatings Using Acoustic Emission Parameters. Pt. 2. Multilayer CrN/NbN Coatings with Bilayer Thickness of 67 nm, Metallofiz. Noveishie Tekhnol., 47, No. 10: 1043–1059 (2025)