Influence of Li+/Al3+ on the corrosion behavior of Li-Al layered double hydroxides (LDHs) film on LA51 magnesium alloys
A hierarchical superhydrophobic Al-Li layered double hydroxide (LDH) films with different Li+/Al3+ molar ratios of 1:1, 1:2, 2:1, pH value of 11.5 and reaction temperature of 125 °C, have been fabricated on the surface of Mg-5Li-1Al (LA51) alloys by hydrothermal method following the characteristics...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-03-01
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| Series: | Journal of Magnesium and Alloys |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956722000858 |
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| author | Xinfang Zhang Ruihong Li Xiaoyan Feng Xue Pang Xu He Zili Jin Huiping Ren Dashuang Wang Kailin Li Xingjian Dai Zhilan Du Quan Zhou Yuxin Zhang |
| author_facet | Xinfang Zhang Ruihong Li Xiaoyan Feng Xue Pang Xu He Zili Jin Huiping Ren Dashuang Wang Kailin Li Xingjian Dai Zhilan Du Quan Zhou Yuxin Zhang |
| author_sort | Xinfang Zhang |
| collection | DOAJ |
| description | A hierarchical superhydrophobic Al-Li layered double hydroxide (LDH) films with different Li+/Al3+ molar ratios of 1:1, 1:2, 2:1, pH value of 11.5 and reaction temperature of 125 °C, have been fabricated on the surface of Mg-5Li-1Al (LA51) alloys by hydrothermal method following the characteristics of controllable cation structure and exchangeable anion between layers. The properties of the films were investigated by X-ray diffractometer (XRD), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). XRD and SEM results indicate that the Al-Li LDH films are successfully prepared on LA51 alloys. The contact angle (CA) was measured to be about 100.7°, indicating that the surface wettability of the film converted from hydrophilic to hydrophobic by surface modification. The corrosion resistance of Al-Li LDH films was evaluated by Tafel polarization curve and electrochemical impedance spectroscopy (EIS). Surprisingly, Tafel polarization curve and EIS test reveal that the Al-Li LDH films prepared at the molar ratio of Li+/Al3+ 1:2, pH 11.5 and temperature 125 °C have better corrosion resistance in 0.1 M NaCl neutral solution. In addition, the formation mechanism and corrosion mechanism of the films on the surface of LA51 alloy are also proposed. It provides innovative synthetic materials and novel design ideas for the preparation of high-efficiency anti-corrosion coatings on LA51 alloys, whose application can be extended in industrial fields. |
| first_indexed | 2024-04-09T14:42:44Z |
| format | Article |
| id | doaj.art-bb61f10efc8d46cf8c25d0b1e85327f1 |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-04-09T14:42:44Z |
| publishDate | 2023-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-bb61f10efc8d46cf8c25d0b1e85327f12023-05-03T04:09:58ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672023-03-0111310831093Influence of Li+/Al3+ on the corrosion behavior of Li-Al layered double hydroxides (LDHs) film on LA51 magnesium alloysXinfang Zhang0Ruihong Li1Xiaoyan Feng2Xue Pang3Xu He4Zili Jin5Huiping Ren6Dashuang Wang7Kailin Li8Xingjian Dai9Zhilan Du10Quan Zhou11Yuxin Zhang12School of Material and Metallurgy, Inner Mongolia University of Science & Technology, Baotou 014010, China; College of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaSchool of Material and Metallurgy, Inner Mongolia University of Science & Technology, Baotou 014010, China; Corresponding authors.School of Material and Metallurgy, Inner Mongolia University of Science & Technology, Baotou 014010, ChinaSchool of Material and Metallurgy, Inner Mongolia University of Science & Technology, Baotou 014010, ChinaSchool of Material and Metallurgy, Inner Mongolia University of Science & Technology, Baotou 014010, ChinaSchool of Material and Metallurgy, Inner Mongolia University of Science & Technology, Baotou 014010, ChinaSchool of Material and Metallurgy, Inner Mongolia University of Science & Technology, Baotou 014010, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; Corresponding authors.A hierarchical superhydrophobic Al-Li layered double hydroxide (LDH) films with different Li+/Al3+ molar ratios of 1:1, 1:2, 2:1, pH value of 11.5 and reaction temperature of 125 °C, have been fabricated on the surface of Mg-5Li-1Al (LA51) alloys by hydrothermal method following the characteristics of controllable cation structure and exchangeable anion between layers. The properties of the films were investigated by X-ray diffractometer (XRD), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). XRD and SEM results indicate that the Al-Li LDH films are successfully prepared on LA51 alloys. The contact angle (CA) was measured to be about 100.7°, indicating that the surface wettability of the film converted from hydrophilic to hydrophobic by surface modification. The corrosion resistance of Al-Li LDH films was evaluated by Tafel polarization curve and electrochemical impedance spectroscopy (EIS). Surprisingly, Tafel polarization curve and EIS test reveal that the Al-Li LDH films prepared at the molar ratio of Li+/Al3+ 1:2, pH 11.5 and temperature 125 °C have better corrosion resistance in 0.1 M NaCl neutral solution. In addition, the formation mechanism and corrosion mechanism of the films on the surface of LA51 alloy are also proposed. It provides innovative synthetic materials and novel design ideas for the preparation of high-efficiency anti-corrosion coatings on LA51 alloys, whose application can be extended in industrial fields.http://www.sciencedirect.com/science/article/pii/S2213956722000858Magnesium alloysCorrosion resistanceAl-Li LDHSuper-hydrophobicity |
| spellingShingle | Xinfang Zhang Ruihong Li Xiaoyan Feng Xue Pang Xu He Zili Jin Huiping Ren Dashuang Wang Kailin Li Xingjian Dai Zhilan Du Quan Zhou Yuxin Zhang Influence of Li+/Al3+ on the corrosion behavior of Li-Al layered double hydroxides (LDHs) film on LA51 magnesium alloys Journal of Magnesium and Alloys Magnesium alloys Corrosion resistance Al-Li LDH Super-hydrophobicity |
| title | Influence of Li+/Al3+ on the corrosion behavior of Li-Al layered double hydroxides (LDHs) film on LA51 magnesium alloys |
| title_full | Influence of Li+/Al3+ on the corrosion behavior of Li-Al layered double hydroxides (LDHs) film on LA51 magnesium alloys |
| title_fullStr | Influence of Li+/Al3+ on the corrosion behavior of Li-Al layered double hydroxides (LDHs) film on LA51 magnesium alloys |
| title_full_unstemmed | Influence of Li+/Al3+ on the corrosion behavior of Li-Al layered double hydroxides (LDHs) film on LA51 magnesium alloys |
| title_short | Influence of Li+/Al3+ on the corrosion behavior of Li-Al layered double hydroxides (LDHs) film on LA51 magnesium alloys |
| title_sort | influence of li al3 on the corrosion behavior of li al layered double hydroxides ldhs film on la51 magnesium alloys |
| topic | Magnesium alloys Corrosion resistance Al-Li LDH Super-hydrophobicity |
| url | http://www.sciencedirect.com/science/article/pii/S2213956722000858 |
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