Mr. Artur M. Migranov Profile

Artur M. Migranov

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Proceedings Article | 14 November 2021 Poster + Presentation + Paper

Sensor information processing in the control of quality parameters of functional coatings of products deposited by vacuum-arc spraying

Sergey Grigoriev, Mars Migranov, Semen Shekhtman, Artur Migranov, Artem Ershov, Petr Pivkin

Proceedings Volume 11914, 119141C (2021) https://doi.org/10.1117/12.2605753

KEYWORDS: Nanostructuring, Resistance, Corrosion, Ions, Plasma, Multilayers, Thin film coatings, Metals, Plasma generation

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Nanostructured Ti-TiN coatings are one of the most common types of wear-resistant and corrosion-resistant coatings of machine parts and cutting tools. Multicomponent nanostructured coatings were deposited on AISI 318 substrates by vacuum-arc spraying by ion flux ratio for 30-45 seconds with formation of three types of Ti-TiN coatings: three-layer coating, multilayer coating and nanostructured coating. We propose to use the technology of Ti-TiN multilayer coating based on surface modification of the sample by bombarding with a high-current discharge using a “PINK” plasma generator, heating the substrate with ions of cathode material and obtaining cathode material condensation on targets followed by formation of multilayer coating. Target bombarding with an additional ion flux creates active nucleation centers where adsorption occurs and a fine-grained structure is formed. Ion bombardment significantly affects the physical and chemical properties of the sample surface. A detailed research of the change in the relationship of microhardness and adhesion strength of the coating depending on the type of coating of the sample was conducted, and corrosion resistance and wear resistance were investigated by high-precision signal processing from an automatic friction tribometer at a speed of 127 rpm for 60 minutes. As a result of data processing of measuring instruments during control of tribological and physical-mechanical characteristics it was established that formation of nanostructured coatings Ti-TiN with smaller thickness of Ti-TiN layer (30-100 nm) with submicrocrystalline structure allows to improve significantly physicalmechanical characteristics of samples.

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