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Title of the article WEAR RESISTANCE OF ANTIFRICTION GAS-THERMAL COATINGS BASED ON THE Cu-Al SYSTEM UNDER BOUNDARY FRICTION
Authors

GRIGORCHIK Alexander N., Ph. D. in Eng., Deputy Head of the Center of Structural Research and Tribomechanical Testing of Materials and Mechanical Engineering Products of Collective Use of the R&D Center “Mechanical Engineering Technologies and Processing Equipment”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

KUKAREKO Vladimir A., D. Sc. in Phys. and Math., Prof., Chief of the Center of Structural Research and Tribomechanical Testing of Materials and Mechanical Engineering Products of Collective Use of the R&D Center “Mechanical Engineering Technologies and Processing Equipment”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

BELOTSERKOVSKY Marat А., D. Sc. in Eng., Prof., Head of the Laboratory of Gas-Thermal Methods of Machine Components Hardening of the R&D Center “Mechanical Engineering Technologies and Processing Equipment”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

SOSNOVSKIY Aleksey V., Ph. D. in Eng., Assoc. Prof., Leading Researcher of the Laboratory of Gas-Thermal Methods of Machine Component Hardening of the R&D Center “Mechanical Engineering Technologies and Processing Equipment”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

ASTRASHAB Evgeniy V., Researcher of the Center of Structural Research and Tribomechanical Testing of Materials and Mechanical Engineering Products of Collective Use of the R&D Center “Mechanical Engineering Technologies and Processing Equipment”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section MECHANICAL ENGINEERING MATERIALS AND TECHNOLOGIES
Year 2023
Issue 4(65)
Pages 54–62
Type of article RAR
Index UDK 621.793
DOI https://doi.org/10.46864/1995-0470-2023-4-65-54-62
Abstract The paper studies the structure, phase composition, durometric and tribological properties of sprayed composite gas-thermal coatings based on the Cu-Al system. It is shown that the sprayed coatings include Cu, Al, Cu9Al4, CuAl2, Cu3Al, Si, Al2O3 phases. It is established that additional annealing of composite coatings at 175 and 225 °С for 2 h leads to an increase in the content of intermetallic compounds in them up to ≈ 43 vol.%, which contributes to an increase in the microhardness of the composites up to ≈ 20 % compared to the initial state. It is noted that the coating of “CuSi3Mn1+AlSi12” is characterized by increased wear resistance in the environment of the lubricant I-20A and its wear resistance is up to 2 times higher than the wear resistance of the sprayed coating of bronze CuSn10P1. It is shown that additional annealing of coatings made of “CuSi3Mn1+AlSi12” leads to an increase in their wear resistance up to 30 % compared to the initial state.
Keywords composite materials, antifriction coatings, phase composition, intermetallic compounds, wear resistance
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