The study of the influence of micro-arc oxidation modes on the morphology and parameters of an oxide coating on the D16AT aluminum alloy
An effective way to protect valve metals and their alloys is the micro-arc oxidation method (MAO), which is currently used in various industries. However, to achieve the desired characteristics and properties of oxide coatings, a large number of experiments are required to determine an optimal oxida...
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| Format: | Article |
| Language: | English |
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Togliatti State University
2023-03-01
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| Series: | Frontier Materials & Technologies |
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| Online Access: | https://www.vektornaukitech.ru/jour/article/view/817/772 |
| _version_ | 1797771228084174848 |
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| author | Fengyuan Bao Oleg V. Bashkov Dan Zhang Lan Lyu Tatiana I. Bashkova |
| author_facet | Fengyuan Bao Oleg V. Bashkov Dan Zhang Lan Lyu Tatiana I. Bashkova |
| author_sort | Fengyuan Bao |
| collection | DOAJ |
| description | An effective way to protect valve metals and their alloys is the micro-arc oxidation method (MAO), which is currently used in various industries. However, to achieve the desired characteristics and properties of oxide coatings, a large number of experiments are required to determine an optimal oxidation mode, which makes the MAO method labor-intensive and resource-consuming. One of the ways to solve this problem is the search for an informative parameter or several parameters, the use of which during the oxidation process monitoring allows identifying a relationship between the MAO modes and the specified characteristics of oxide coatings. This paper studies the influence of the specified technological MAO modes (current density, oxidation time, amplitude of acoustic emission (AE) signals recorded during MAO) on the morphology and parameters of oxide coatings (thickness δ and surface roughness Ra) deposited on the D16AT aluminum alloy clad with pure aluminum. Multivariate planning of an experiment and the performed regression analysis allowed establishing a relationship between two oxidation factors (current density and oxidation time) and the parameters of the produced coatings. The authors proposed an additional factor, which is determined in the monitoring mode during the oxidation process as the time from the moment when the maximum or minimum of the acoustic emission (AE) amplitude recorded in the MAO process is reached until the end of the oxidation process. The study established that the introduction of an additional factor allows increasing significantly the reliability of the dependence between the coating parameters obtained experimentally and by the computational method based on the regression analysis. The authors note that when performing MAO, with the additional use of the MAO process monitoring by recording the AE amplitude, it is possible to achieve a high reliability between the calculated and actual values of the parameters of oxide coatings. |
| first_indexed | 2024-03-12T21:33:31Z |
| format | Article |
| id | doaj.art-627f26e032f14f9992c15e02b64bb274 |
| institution | Directory Open Access Journal |
| issn | 2782-4039 2782-6074 |
| language | English |
| last_indexed | 2024-03-12T21:33:31Z |
| publishDate | 2023-03-01 |
| publisher | Togliatti State University |
| record_format | Article |
| series | Frontier Materials & Technologies |
| spelling | doaj.art-627f26e032f14f9992c15e02b64bb2742023-07-27T12:18:17ZengTogliatti State UniversityFrontier Materials & Technologies2782-40392782-60742023-03-01172110.18323/2782-4039-2023-1-7-21The study of the influence of micro-arc oxidation modes on the morphology and parameters of an oxide coating on the D16AT aluminum alloyFengyuan Bao0https://orcid.org/0000-0001-5762-7953Oleg V. Bashkov1https://orcid.org/0000-0002-3910-9797Dan Zhang2https://orcid.org/0000-0003-4150-7038Lan Lyu3Tatiana I. Bashkova4https://orcid.org/0000-0001-7070-5821Komsomolsk-na-Amure State University, Komsomolsk-on-Amur, RussiaKomsomolsk-na-Amure State University, Komsomolsk-on-Amur, RussiaHeilongjiang University of Science and Technology, Harbin, ChinaKomsomolsk-na-Amure State University, Komsomolsk-on-Amur, Russia; Heilongjiang University of Science and Technology, Harbin, ChinaKomsomolsk-na-Amure State University, Komsomolsk-on-Amur, RussiaAn effective way to protect valve metals and their alloys is the micro-arc oxidation method (MAO), which is currently used in various industries. However, to achieve the desired characteristics and properties of oxide coatings, a large number of experiments are required to determine an optimal oxidation mode, which makes the MAO method labor-intensive and resource-consuming. One of the ways to solve this problem is the search for an informative parameter or several parameters, the use of which during the oxidation process monitoring allows identifying a relationship between the MAO modes and the specified characteristics of oxide coatings. This paper studies the influence of the specified technological MAO modes (current density, oxidation time, amplitude of acoustic emission (AE) signals recorded during MAO) on the morphology and parameters of oxide coatings (thickness δ and surface roughness Ra) deposited on the D16AT aluminum alloy clad with pure aluminum. Multivariate planning of an experiment and the performed regression analysis allowed establishing a relationship between two oxidation factors (current density and oxidation time) and the parameters of the produced coatings. The authors proposed an additional factor, which is determined in the monitoring mode during the oxidation process as the time from the moment when the maximum or minimum of the acoustic emission (AE) amplitude recorded in the MAO process is reached until the end of the oxidation process. The study established that the introduction of an additional factor allows increasing significantly the reliability of the dependence between the coating parameters obtained experimentally and by the computational method based on the regression analysis. The authors note that when performing MAO, with the additional use of the MAO process monitoring by recording the AE amplitude, it is possible to achieve a high reliability between the calculated and actual values of the parameters of oxide coatings.https://www.vektornaukitech.ru/jour/article/view/817/772micro-arc oxidationoxide coatingacoustic emissionmultivariate analysissurface morphologyaluminum alloyd16at alloyvalve group alloy |
| spellingShingle | Fengyuan Bao Oleg V. Bashkov Dan Zhang Lan Lyu Tatiana I. Bashkova The study of the influence of micro-arc oxidation modes on the morphology and parameters of an oxide coating on the D16AT aluminum alloy Frontier Materials & Technologies micro-arc oxidation oxide coating acoustic emission multivariate analysis surface morphology aluminum alloy d16at alloy valve group alloy |
| title | The study of the influence of micro-arc oxidation modes on the morphology and parameters of an oxide coating on the D16AT aluminum alloy |
| title_full | The study of the influence of micro-arc oxidation modes on the morphology and parameters of an oxide coating on the D16AT aluminum alloy |
| title_fullStr | The study of the influence of micro-arc oxidation modes on the morphology and parameters of an oxide coating on the D16AT aluminum alloy |
| title_full_unstemmed | The study of the influence of micro-arc oxidation modes on the morphology and parameters of an oxide coating on the D16AT aluminum alloy |
| title_short | The study of the influence of micro-arc oxidation modes on the morphology and parameters of an oxide coating on the D16AT aluminum alloy |
| title_sort | study of the influence of micro arc oxidation modes on the morphology and parameters of an oxide coating on the d16at aluminum alloy |
| topic | micro-arc oxidation oxide coating acoustic emission multivariate analysis surface morphology aluminum alloy d16at alloy valve group alloy |
| url | https://www.vektornaukitech.ru/jour/article/view/817/772 |
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