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Title of the article INFLUENCE OF ANNEALING ON THE STRUCTURE, PHASE COMPOSITION AND WEAR RESISTANCE OF Fe-Al COMPOSITE COATING SPUTTERED BY HIGH-SPEED METALLIZATION METHOD
Authors

ASTRASHAB Evgeniy V., Ph. D. in Eng., Senior Researcher of the Center of Structural Research and Tribomechanical Testing of Materials and Mechanical Engineering Products 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.

GRIGORCHIK Alexander N., Ph. D. in Eng., Deputy Chief of the Center of Structural Research and Tribomechanical Testing of Materials and Mechanical Engineering Products 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 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.

GUO Xiaomei, Ph. D. in Eng., Prof., Dean of the School of Mechanical and Automotive Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, People’s Republic of China, 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 2024
Issue 4(69)
Pages 78–87
Type of article RAR
Index UDK 621.793
DOI https://doi.org/10.46864/1995-0470-2024-4-69-78-87
Abstract The structure, phase composition and tribotechnical properties of Fe-Al composite coating subjected to annealing in the temperature range of 350–550 °C for 10 hours have been investigated. It is established that during annealing of the coating, in a set of diffusion pairs (steel–aluminium) formed during sputtering under conditions of limited content of components, reaction diffusion takes place, leading to simultaneous formation of intermetallic compounds of different stoichiometric composition: Al13Fe4, Al3Fe, Al5Fe2, AlFe and AlFe3. It is shown that the mutual diffusion of iron into aluminium and aluminium into steel between the contacting particles of the composite coating is caused by the peculiarities of the formation of the structural-phase state of the composite coating during its obtaining. The porosity of the coating at annealing increases up to 37 vol.%, and its hardness increases up to ≈ 1.2 times in comparison with the initial state. It is established that annealing of composite coating in the temperature range of 350–550 °С for 10 hours leads to increase of its wear resistance up to 2.4 times in comparison with the initial state.
Keywords composite coating, Fe-Al intermetallic compounds, high-speed metallization, structure, phase composition, hardness, tribotechnical properties
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