The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg-7Y alloy in natural seawater

doi:10.1016/j.jmrt.2023.09.263

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	The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg-7Y alloy in natural seawater
	Liu, Chang 2,3,4; Jiang, Quantong 1,2,3,4; Sun, Qiang 2,3; Wu, Siwei 2,3; Tang, Heng 2,3; Lu, Dongzhu 2,3,4; Liu, Nazhen 2,3,4; Duan, Jizhou 1,2,3,4; Hou, Baorong 1,2,3,4
刊名	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
	2023-09-01
卷号	26 页码:9203-9223
关键词	Mg-7Y alloy Microarc oxidation Corrosion resistance Hydrothermal performance
ISSN号	2238-7854
DOI	10.1016/j.jmrt.2023.09.263
通讯作者	Jiang, Quantong(jiangquantong@qdio.ac.cn) ; Liu, Nazhen(liunazhen@qdio.ac.cn)
英文摘要	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 scan-ning 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 hydrother-mal test demonstrated that the hydrothermal resistance of the coatings was significantly improved due to the addition of Nb2O5. (c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
资助项目	Hainan Province Science and Technology Special Fund[ZDYF2021GXJS210] ; Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City[2021CXLH0005] ; Wenhai Program of the S & T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology[2021WHZZB2301] ; Overseas Science and Education Centers of Bureau of INTERNATIONAL COOPERATION Chinese Academy of Sciences[121311KYSB20210005]
WOS关键词	MICRO-ARC OXIDATION ; AZ31 MAGNESIUM ALLOY ; BEHAVIOR ; MICROSTRUCTURE ; MECHANISM ; PROTECTION ; PROPERTY ; FILM
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001088645300001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/181555]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Jiang, Quantong; Liu, Nazhen
作者单位	1.Sanya Inst Ocean Ecoenvironm Engn, Zhenzhou Rd, Sanya 572000, Peoples R China 2.Laoshan Lab Marine Corros & Protect Open Studio, 1 Wenhai Rd, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 4.Qilu Univ Technol, Sch Mat Sci & Engn, 3501 Daxue Rd, Jinan 250353, Peoples R China
推荐引用方式 GB/T 7714	Liu, Chang,Jiang, Quantong,Sun, Qiang,et al. The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg-7Y alloy in natural seawater[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,26:9203-9223.
APA	Liu, Chang.,Jiang, Quantong.,Sun, Qiang.,Wu, Siwei.,Tang, Heng.,...&Hou, Baorong.(2023).The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg-7Y alloy in natural seawater.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,26,9203-9223.
MLA	Liu, Chang,et al."The hydrothermal performance and corrosion resistance of MgO@Nb2O5 composite coatings on Mg-7Y alloy in natural seawater".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 26(2023):9203-9223.