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Enhancing the self-healing property by adding the synergetic corrosion inhibitors of Na3PO4 and 2-mercaptobenzothiazole into the coating of Mg alloy
Liu, Dan1,2; Han, En-Hou1; Song, Yingwei1; Shan, Dayong1
Corresponding AuthorHan, En-Hou(ehhan@imr.ac.cn) ; Song, Yingwei(ywsong@imr.ac.cn)
2019-11-10
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume323Pages:7
AbstractSelf-healing coatings can inhibit the corrosion of Mg alloys from the damaged areas. In this paper, a duplex self-healing coating, with loading interphase inhibitor into the pores of micro-arc oxidation (MAO) film and doping organic inhibitor into the top paint, is prepared to enhance the self-healing property. The synergistic effect between both inhibitors and the self-healing property of the coating were characterized. The releasing and healing processes were investigated. The results show that 2-mercaptobenzothiazole (MBT) can absorb on the defects of the formed Mg-3(PO4)(2) and Mg(OH)(2) film, which further inhibits the corrosion process by synergistic effect. When the self-healing coating is damaged, phosphate ions can be released from the MAO film quickly while MBT is released from the top paint slowly, then they synergistically inhibit the corrosion of the damaged areas, enhancing the self-healing property greatly in comparison with addition of each inhibitor singly. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordCorrosion Synergistic effect Self-healing coating Micro-arc oxidation film Inhibitors
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China
DOI10.1016/j.electacta.2019.134796
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51671199] ; National Key Research and Development Program of China[2016 YFB0301105]
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000486999200007
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/135543
Collection中国科学院金属研究所
Corresponding AuthorHan, En-Hou; Song, Yingwei
Affiliation1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Liu, Dan,Han, En-Hou,Song, Yingwei,et al. Enhancing the self-healing property by adding the synergetic corrosion inhibitors of Na3PO4 and 2-mercaptobenzothiazole into the coating of Mg alloy[J]. ELECTROCHIMICA ACTA,2019,323:7.
APA Liu, Dan,Han, En-Hou,Song, Yingwei,&Shan, Dayong.(2019).Enhancing the self-healing property by adding the synergetic corrosion inhibitors of Na3PO4 and 2-mercaptobenzothiazole into the coating of Mg alloy.ELECTROCHIMICA ACTA,323,7.
MLA Liu, Dan,et al."Enhancing the self-healing property by adding the synergetic corrosion inhibitors of Na3PO4 and 2-mercaptobenzothiazole into the coating of Mg alloy".ELECTROCHIMICA ACTA 323(2019):7.
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