The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg–7Y alloy in natural seawater
MgO@Nb2O5 composite coating was prepared on the surface of Mg–7Y alloy by micro-arc oxidation technique. The microstructure of the composite coatings was tested by scanning electron microscopy, energy spectrum analysis, X-ray diffraction and scanning kelvin probe force microscope. The hydrothermal p...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542302389X |
| _version_ | 1797646580032995328 |
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| author | Chang Liu Quantong Jiang Qiang Sun Siwei Wu Heng Tang Dongzhu Lu Nazhen Liu Jizhou Duan Baorong Hou |
| author_facet | Chang Liu Quantong Jiang Qiang Sun Siwei Wu Heng Tang Dongzhu Lu Nazhen Liu Jizhou Duan Baorong Hou |
| author_sort | Chang Liu |
| collection | DOAJ |
| description | MgO@Nb2O5 composite coating was prepared on the surface of Mg–7Y alloy by micro-arc oxidation technique. The microstructure of the composite coatings was tested by scanning electron microscopy, energy spectrum analysis, X-ray diffraction and scanning kelvin probe force microscope. The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings were analyzed by electrochemistry tests and laser confocal. The results showed that microspore diameter, porosity and roughness of the composite coatings were all decreased with the increasing of Nb2O5 concentration. The micro-arc oxidation composite coatings were mainly composed of MgO and Nb2O5. Compared with the micro-arc oxidation coating without Nb2O5, the corrosion voltage of the micro-arc oxidation coating with Nb2O5 was increased and the corrosion current was reduced. The corrosion resistance of Mg–7Y alloy was effectively improved by the MgO@Nb2O5 composite coatings, and the best corrosion resistance of the micro-arc oxidation coating was achieved when the Nb2O5 concentration was 2 g/L. The hydrothermal test demonstrated that the hydrothermal resistance of the coatings was significantly improved due to the addition of Nb2O5. |
| first_indexed | 2024-03-11T15:04:38Z |
| format | Article |
| id | doaj.art-4fcd962294ed4247807e329b43b8bb50 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:04:38Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-4fcd962294ed4247807e329b43b8bb502023-10-30T06:05:03ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012692039223The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg–7Y alloy in natural seawaterChang Liu0Quantong Jiang1Qiang Sun2Siwei Wu3Heng Tang4Dongzhu Lu5Nazhen Liu6Jizhou Duan7Baorong Hou8School of Materials Science and Engineering, Qilu University of Technology, No.3501, Daxue Road, Jinan 250353, PR China; China CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, ChinaSchool of Materials Science and Engineering, Qilu University of Technology, No.3501, Daxue Road, Jinan 250353, PR China; China CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, China; Sanya Institute of Ocean Eco-Environmental Engineering, Zhenzhou Road, Sanya 572000, China; Corresponding author. School of Materials Science and Engineering, Qilu University of Technology, No.3501, Daxue Road, Jinan 250353, PR China.China CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, ChinaChina CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, ChinaChina CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, ChinaSchool of Materials Science and Engineering, Qilu University of Technology, No.3501, Daxue Road, Jinan 250353, PR China; China CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, ChinaSchool of Materials Science and Engineering, Qilu University of Technology, No.3501, Daxue Road, Jinan 250353, PR China; China CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, China; Corresponding author. School of Materials Science and Engineering, Qilu University of Technology, No.3501, Daxue Road, Jinan 250353, PR China.School of Materials Science and Engineering, Qilu University of Technology, No.3501, Daxue Road, Jinan 250353, PR China; China CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, China; Sanya Institute of Ocean Eco-Environmental Engineering, Zhenzhou Road, Sanya 572000, ChinaSchool of Materials Science and Engineering, Qilu University of Technology, No.3501, Daxue Road, Jinan 250353, PR China; China CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, No.7 Nanhai Road, Qingdao 266071, China; Laoshan Laboratory Marine Corrosion and Protection Open Studio, No.1 Wenhai Road, Qingdao 266071, China; Sanya Institute of Ocean Eco-Environmental Engineering, Zhenzhou Road, Sanya 572000, ChinaMgO@Nb2O5 composite coating was prepared on the surface of Mg–7Y alloy by micro-arc oxidation technique. The microstructure of the composite coatings was tested by scanning electron microscopy, energy spectrum analysis, X-ray diffraction and scanning kelvin probe force microscope. The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings were analyzed by electrochemistry tests and laser confocal. The results showed that microspore diameter, porosity and roughness of the composite coatings were all decreased with the increasing of Nb2O5 concentration. The micro-arc oxidation composite coatings were mainly composed of MgO and Nb2O5. Compared with the micro-arc oxidation coating without Nb2O5, the corrosion voltage of the micro-arc oxidation coating with Nb2O5 was increased and the corrosion current was reduced. The corrosion resistance of Mg–7Y alloy was effectively improved by the MgO@Nb2O5 composite coatings, and the best corrosion resistance of the micro-arc oxidation coating was achieved when the Nb2O5 concentration was 2 g/L. The hydrothermal test demonstrated that the hydrothermal resistance of the coatings was significantly improved due to the addition of Nb2O5.http://www.sciencedirect.com/science/article/pii/S223878542302389XMg–7Y alloyMgO@Nb2O5 composite coatingsMicroarc oxidationCorrosion resistanceHydrothermal performance |
| spellingShingle | Chang Liu Quantong Jiang Qiang Sun Siwei Wu Heng Tang Dongzhu Lu Nazhen Liu Jizhou Duan Baorong Hou The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg–7Y alloy in natural seawater Journal of Materials Research and Technology Mg–7Y alloy MgO@Nb2O5 composite coatings Microarc oxidation Corrosion resistance Hydrothermal performance |
| title | The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg–7Y alloy in natural seawater |
| title_full | The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg–7Y alloy in natural seawater |
| title_fullStr | The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg–7Y alloy in natural seawater |
| title_full_unstemmed | The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg–7Y alloy in natural seawater |
| title_short | The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg–7Y alloy in natural seawater |
| title_sort | hydrothermal performance and corrosion resistance of mgo nb2o5 composite coatings on mg 7y alloy in natural seawater |
| topic | Mg–7Y alloy MgO@Nb2O5 composite coatings Microarc oxidation Corrosion resistance Hydrothermal performance |
| url | http://www.sciencedirect.com/science/article/pii/S223878542302389X |
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