STUDY OF STRUCTURE AND MICROHARDNESS OF PROTECTIVE OXIDECERAMIC COATINGS OBTAINED BY MICRO-ARC OXIDATION ON DEPOSITED SURFACES
The paper is devoted to studying the structure and microhardness of protective oxide-ceramic coatings obtained by micro-arc oxidation on the deposited surfaces of parts. Experimental researches were carried out with the use of the commonly used perfected methods and up-to-date measuring instrume...
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| Format: | Article |
| Language: | English |
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The Association of Intellectuals for the Development of Science in Serbia – “The Serbian Academic Center”
2024-12-01
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| Series: | Advanced Engineering Letters |
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| Online Access: | https://www.adeletters.com/journals/2024/ADEL0058.pdf |
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| author | Yury Kuznetsov Aleksey Gribakin Igor Kravchenko Vladimir Goncharenko Alexander Feryabkov4 Alexander Panov Larisa Kalashnikova |
| author_facet | Yury Kuznetsov Aleksey Gribakin Igor Kravchenko Vladimir Goncharenko Alexander Feryabkov4 Alexander Panov Larisa Kalashnikova |
| author_sort | Yury Kuznetsov |
| collection | DOAJ |
| description | The paper is devoted to studying the structure and microhardness of
protective oxide-ceramic coatings obtained by micro-arc oxidation on the
deposited surfaces of parts. Experimental researches were carried out with
the use of the commonly used perfected methods and up-to-date
measuring instruments and equipment. AlSi7Mg aluminum alloy was used
to conduct the research and was deposited with various wires. A welding
machine UDG-180 was used to surface the samples. Hardened layers were
formed on the deposited surfaces in the developed electrolyte in an
installation for micro-arc oxidation, working in the anode-cathode mode. It
has been established that the hardened layer formed by micro-arc
oxidation is characterized by high microhardness. The increased
microhardness of coatings is explained by the presence in their structure of
high-temperature solid-phase modification α-Al2O3. Introducing
electrolytes of composite materials 1.5 to 1.8 times allows for shortening
the oxidation duration. Coatings obtained by micro-arc oxidation are
heterogeneous in thickness and physical properties. Considering
mechanical processing, the thickness of the hardened layer formed on the
deposited surface of the part must be at least 90-120 µm. |
| format | Article |
| id | doaj-art-1e3c7ce1ce2541b99029d37c2579d48e |
| institution | Kabale University |
| issn | 2812-9709 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | The Association of Intellectuals for the Development of Science in Serbia – “The Serbian Academic Center” |
| record_format | Article |
| series | Advanced Engineering Letters |
| spelling | doaj-art-1e3c7ce1ce2541b99029d37c2579d48e2025-01-09T19:49:34ZengThe Association of Intellectuals for the Development of Science in Serbia – “The Serbian Academic Center”Advanced Engineering Letters2812-97092024-12-013416417210.46793/adeletters.2024.3.4.3STUDY OF STRUCTURE AND MICROHARDNESS OF PROTECTIVE OXIDECERAMIC COATINGS OBTAINED BY MICRO-ARC OXIDATION ON DEPOSITED SURFACESYury Kuznetsov0Aleksey Gribakin1Igor Kravchenko2Vladimir Goncharenko3Alexander Feryabkov44Alexander Panov5Larisa Kalashnikova6Orel State Agrarian University named after N.V. Parakhin, Orel, RussiaOrel State Agrarian University named after N.V. Parakhin, Orel, Russia Institute of Mechanical Engineering of the Russian Academy of Sciences named after A.A. Blagonravov (IMASH RAS), Moscow, Russia; Russian State Agrarian University – MTAA named after K.A. Timiryazev, Moscow, RussiaOrel State Agrarian University named after N.V. Parakhin, Orel, RussiaVernadsky Russian State University of National Economy, Balashikha, RussiaThe State Scientific Institution “The Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus”, Minsk, Republic of BelarusOrel State University named after I.S. Turgenev, Orel, RussiaThe paper is devoted to studying the structure and microhardness of protective oxide-ceramic coatings obtained by micro-arc oxidation on the deposited surfaces of parts. Experimental researches were carried out with the use of the commonly used perfected methods and up-to-date measuring instruments and equipment. AlSi7Mg aluminum alloy was used to conduct the research and was deposited with various wires. A welding machine UDG-180 was used to surface the samples. Hardened layers were formed on the deposited surfaces in the developed electrolyte in an installation for micro-arc oxidation, working in the anode-cathode mode. It has been established that the hardened layer formed by micro-arc oxidation is characterized by high microhardness. The increased microhardness of coatings is explained by the presence in their structure of high-temperature solid-phase modification α-Al2O3. Introducing electrolytes of composite materials 1.5 to 1.8 times allows for shortening the oxidation duration. Coatings obtained by micro-arc oxidation are heterogeneous in thickness and physical properties. Considering mechanical processing, the thickness of the hardened layer formed on the deposited surface of the part must be at least 90-120 µm.https://www.adeletters.com/journals/2024/ADEL0058.pdfmicro-arc oxidationelectrolytealuminum alloywelding wirecoatingthickness |
| spellingShingle | Yury Kuznetsov Aleksey Gribakin Igor Kravchenko Vladimir Goncharenko Alexander Feryabkov4 Alexander Panov Larisa Kalashnikova STUDY OF STRUCTURE AND MICROHARDNESS OF PROTECTIVE OXIDECERAMIC COATINGS OBTAINED BY MICRO-ARC OXIDATION ON DEPOSITED SURFACES Advanced Engineering Letters micro-arc oxidation electrolyte aluminum alloy welding wire coating thickness |
| title | STUDY OF STRUCTURE AND MICROHARDNESS OF PROTECTIVE OXIDECERAMIC COATINGS OBTAINED BY MICRO-ARC OXIDATION ON DEPOSITED SURFACES |
| title_full | STUDY OF STRUCTURE AND MICROHARDNESS OF PROTECTIVE OXIDECERAMIC COATINGS OBTAINED BY MICRO-ARC OXIDATION ON DEPOSITED SURFACES |
| title_fullStr | STUDY OF STRUCTURE AND MICROHARDNESS OF PROTECTIVE OXIDECERAMIC COATINGS OBTAINED BY MICRO-ARC OXIDATION ON DEPOSITED SURFACES |
| title_full_unstemmed | STUDY OF STRUCTURE AND MICROHARDNESS OF PROTECTIVE OXIDECERAMIC COATINGS OBTAINED BY MICRO-ARC OXIDATION ON DEPOSITED SURFACES |
| title_short | STUDY OF STRUCTURE AND MICROHARDNESS OF PROTECTIVE OXIDECERAMIC COATINGS OBTAINED BY MICRO-ARC OXIDATION ON DEPOSITED SURFACES |
| title_sort | study of structure and microhardness of protective oxideceramic coatings obtained by micro arc oxidation on deposited surfaces |
| topic | micro-arc oxidation electrolyte aluminum alloy welding wire coating thickness |
| url | https://www.adeletters.com/journals/2024/ADEL0058.pdf |
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