Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings
Microarc oxidation (MAO) coatings were prepared on 2024-T4 aluminum alloys using a pulsed bipolar power supply at different anode pulse-widths. After the MAO coatings were formed, the micropores and microcracks on the surface of the MAO coatings were filled with Fluorinated ethylene propylene (FEP)...
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| Format: | Article |
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MDPI AG
2017-06-01
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| Series: | Metals |
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| Online Access: | http://www.mdpi.com/2075-4701/7/7/243 |
| _version_ | 1818265963909349376 |
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| author | Zhen-Wei Li Shi-Chun Di |
| author_facet | Zhen-Wei Li Shi-Chun Di |
| author_sort | Zhen-Wei Li |
| collection | DOAJ |
| description | Microarc oxidation (MAO) coatings were prepared on 2024-T4 aluminum alloys using a pulsed bipolar power supply at different anode pulse-widths. After the MAO coatings were formed, the micropores and microcracks on the surface of the MAO coatings were filled with Fluorinated ethylene propylene (FEP) dispersion for preparing MAO self-lubricating composite coatings containing FEP. The effect of the anode pulse-width on the microstructure and wear resistance of the microarc oxidation coatings was investigated. The wear resistance of the microarc oxidation self-lubricating composite coatings was analyzed. The results revealed that the MAO self-lubricating composite coatings integrated the advantages of wear resistance of the MAO ceramic coatings and a low friction coefficient of FEP. Compared to the MAO coatings, the microarc oxidation self-lubricating composite coatings exhibited a lower friction coefficient and lower wear rates. |
| first_indexed | 2024-12-12T19:59:10Z |
| format | Article |
| id | doaj.art-717a6cd836464c7f93cf9727f3051993 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-12T19:59:10Z |
| publishDate | 2017-06-01 |
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| series | Metals |
| spelling | doaj.art-717a6cd836464c7f93cf9727f30519932022-12-22T00:13:48ZengMDPI AGMetals2075-47012017-06-017724310.3390/met7070243met7070243Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation CoatingsZhen-Wei Li0Shi-Chun Di1School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaMicroarc oxidation (MAO) coatings were prepared on 2024-T4 aluminum alloys using a pulsed bipolar power supply at different anode pulse-widths. After the MAO coatings were formed, the micropores and microcracks on the surface of the MAO coatings were filled with Fluorinated ethylene propylene (FEP) dispersion for preparing MAO self-lubricating composite coatings containing FEP. The effect of the anode pulse-width on the microstructure and wear resistance of the microarc oxidation coatings was investigated. The wear resistance of the microarc oxidation self-lubricating composite coatings was analyzed. The results revealed that the MAO self-lubricating composite coatings integrated the advantages of wear resistance of the MAO ceramic coatings and a low friction coefficient of FEP. Compared to the MAO coatings, the microarc oxidation self-lubricating composite coatings exhibited a lower friction coefficient and lower wear rates.http://www.mdpi.com/2075-4701/7/7/2432024-T4 aluminum alloysmicroarc oxidationanode pulse-widthFEPadhesion strengthwear resistance |
| spellingShingle | Zhen-Wei Li Shi-Chun Di Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings Metals 2024-T4 aluminum alloys microarc oxidation anode pulse-width FEP adhesion strength wear resistance |
| title | Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings |
| title_full | Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings |
| title_fullStr | Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings |
| title_full_unstemmed | Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings |
| title_short | Effect of Anode Pulse-Width on the Microstructure and Wear Resistance of Microarc Oxidation Coatings |
| title_sort | effect of anode pulse width on the microstructure and wear resistance of microarc oxidation coatings |
| topic | 2024-T4 aluminum alloys microarc oxidation anode pulse-width FEP adhesion strength wear resistance |
| url | http://www.mdpi.com/2075-4701/7/7/243 |
| work_keys_str_mv | AT zhenweili effectofanodepulsewidthonthemicrostructureandwearresistanceofmicroarcoxidationcoatings AT shichundi effectofanodepulsewidthonthemicrostructureandwearresistanceofmicroarcoxidationcoatings |