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Title Improvement of the physical and mechanical properties of the cutting tool by applying wear-resistant coatings based on Ti, Al, Si, and N
Authors Hovorun, Tetiana Pavlivna  
Khaniukov, K.
Varakin, V.
Pererva, Valentyna Ivanivna
Vorobiov, S.
Burlaka, А.
Khvostenko, R.
Keywords coating
cutting tool
structure
properties
wear resistance
Type Article
Date of Issue 2021
URI https://essuir.sumdu.edu.ua/handle/123456789/86433
Publisher Sumy State University
License Creative Commons Attribution - NonCommercial 4.0 International
Citation Hovorun T., Khaniukov K., Varakin V., Pererva V., Vorobiov S., Burlaka А., Khvostenko R. (2021). Improvement of the physical and mechanical properties of the cutting tool by applying wear-resistant coatings based on Ti, Al, Si, and N. Journal of Engineering Sciences, Vol. 8(2), pp. C13-C23, doi: 10.21272/jes.2021.8(2).c3
Abstract From the great variety of methods to improve the efficiency of cutting tools, it is necessary to highlight the methods of applying wear-resistant coatings, which in recent years are increasingly used. Applying wear-resistant coatings on the cutting tool can significantly increase its efficiency and intensify machining modes. Mechanisms of strengthening the wear-resistant coating for materials have been analyzed under the impact of technological parameters of coating condensation process on its structure parameters and mechanical properties, formation of single and multi-element coatings based on titanium nitrides, aluminum, and silicon, the transformation of coating properties by obtaining complex coatings, and principles formation of complex coatings designed for different cutting tools. The influence of the coating on the mechanical properties of high-speed steel is shown. In the magnetron sputtering coatings on P6M5 steel samples, the microhardness of the coatings is TiN – 20–24 GPa, AlN – up to 16 GPa, TiAlN – up to 35 GPa, AlTiN – up to 32 GPa, TiAlSiN – 32–37 GPa, including while the microhardness of the substrate of steel P6M5 – 6–9 GPa. The microhardness of TiAlN and TiAlSiN coatings applied on an instrumental basis is 1,5 - 1,9 times higher than the microhardness of TiN, AlN coatings. It was found that the wear intensity of P6M5 steel without coating is 6 times higher than with AlTiN, TiAlN, and TiAlSiN coating, 3 times higher than with TiN and AlN coating. The coated tool is characterized by increased reliability and higher stability and allows the processing process with higher cutting modes.
Appears in Collections: Journal of Engineering Sciences / Журнал інженерних наук

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