Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy Surface
Fabrication of superhydrophobic coatings for magnesium alloys is in high demand for various industrial applications. Such coatings not only extend the service life of metal structures, but also impart additional useful functional properties to the coated surface. In this study, we show that nanoseco...
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| Format: | Article |
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MDPI AG
2020-12-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/1/41 |
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| author | Kirill A. Emelyanenko Alexander G. Domantovsky Elizaveta V. Chulkova Alexandre M. Emelyanenko Ludmila B. Boinovich |
| author_facet | Kirill A. Emelyanenko Alexander G. Domantovsky Elizaveta V. Chulkova Alexandre M. Emelyanenko Ludmila B. Boinovich |
| author_sort | Kirill A. Emelyanenko |
| collection | DOAJ |
| description | Fabrication of superhydrophobic coatings for magnesium alloys is in high demand for various industrial applications. Such coatings not only extend the service life of metal structures, but also impart additional useful functional properties to the coated surface. In this study, we show that nanosecond laser processing of long, thin stripes of magnesium alloys followed by the deposition of a hydrophobic agent onto the magnesium oxide layer is a simple, convenient, and easily reproducible method for obtaining superhydrophobic surfaces with property gradient along the sample. The mechanism of the gradient in wettability and electrochemical properties of the magnesium alloy surface is discussed based on the high-temperature growth of magnesium oxide and its following degradation. The latter is related to the development of internal stresses and the formation of cracks and pores within the oxide layer at prolonged exposure to high temperatures during the interaction of a laser beam with the substrate. The effect of heating during laser processing of magnesium materials with limited sizes on the protective properties of the forming coatings is elucidated. |
| first_indexed | 2024-03-10T13:44:52Z |
| format | Article |
| id | doaj.art-c3283e4819d9446893377f3487fccddf |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T13:44:52Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-c3283e4819d9446893377f3487fccddf2023-11-21T02:43:42ZengMDPI AGMetals2075-47012020-12-011114110.3390/met11010041Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy SurfaceKirill A. Emelyanenko0Alexander G. Domantovsky1Elizaveta V. Chulkova2Alexandre M. Emelyanenko3Ludmila B. Boinovich4A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Leninsky Prospect 31 bldg. 4, 119071 Moscow, RussiaA.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Leninsky Prospect 31 bldg. 4, 119071 Moscow, RussiaA.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Leninsky Prospect 31 bldg. 4, 119071 Moscow, RussiaA.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Leninsky Prospect 31 bldg. 4, 119071 Moscow, RussiaA.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Leninsky Prospect 31 bldg. 4, 119071 Moscow, RussiaFabrication of superhydrophobic coatings for magnesium alloys is in high demand for various industrial applications. Such coatings not only extend the service life of metal structures, but also impart additional useful functional properties to the coated surface. In this study, we show that nanosecond laser processing of long, thin stripes of magnesium alloys followed by the deposition of a hydrophobic agent onto the magnesium oxide layer is a simple, convenient, and easily reproducible method for obtaining superhydrophobic surfaces with property gradient along the sample. The mechanism of the gradient in wettability and electrochemical properties of the magnesium alloy surface is discussed based on the high-temperature growth of magnesium oxide and its following degradation. The latter is related to the development of internal stresses and the formation of cracks and pores within the oxide layer at prolonged exposure to high temperatures during the interaction of a laser beam with the substrate. The effect of heating during laser processing of magnesium materials with limited sizes on the protective properties of the forming coatings is elucidated.https://www.mdpi.com/2075-4701/11/1/41superhydrophobic surfacecorrosion resistanceMg alloylaser processingproperty gradientfilms |
| spellingShingle | Kirill A. Emelyanenko Alexander G. Domantovsky Elizaveta V. Chulkova Alexandre M. Emelyanenko Ludmila B. Boinovich Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy Surface Metals superhydrophobic surface corrosion resistance Mg alloy laser processing property gradient films |
| title | Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy Surface |
| title_full | Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy Surface |
| title_fullStr | Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy Surface |
| title_full_unstemmed | Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy Surface |
| title_short | Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy Surface |
| title_sort | thermally induced gradient of properties on a superhydrophobic magnesium alloy surface |
| topic | superhydrophobic surface corrosion resistance Mg alloy laser processing property gradient films |
| url | https://www.mdpi.com/2075-4701/11/1/41 |
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