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Corrosion Behavior Study of AZ31B magnesium Alloy by Sol-Gel Silica-based Hybrid Coating
Qian, Zhiqiang1,2,3; Wang, Shidong1,2; Wu, Zhijian1,2
2017-09-01
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
Volume12Issue:9Pages:8269-8279
SubtypeArticle
AbstractIn this work, the silica-based hybrid coatings, which used 3-glycidoxypropyltrimethoxysilane (GPTMS) and tetraethoxysilane (TEOS) as precursors, have been prepared by sol gel method for protection of magnesium alloy (AZ31B) from corrosion. The morphology and surface chemistry of the optimized coatings were studied by scanning electron microscope (SEM) and Fourier transform infrared (FTIR), respectively. The corrosion behaviors of the coatings were evaluated by polarization curves measurements and electrochemical impedance spectroscopy (EIS) in the Harrison's solution (0.35wt% (NH4)(2)SO4 + 0.05wt% NaCl), and the diagrams were fitted using equivalent electrical circuits (EEC). The results revealed that the compact and smooth hybrid silane films were formed on the substrates surface, which provided barrier protection and improved corrosion resistance ability in comparison to untreated magnesium alloy substrate.
KeywordAz31b Magnesium Alloy Sol-gel Corrosion Protection Electrochemical Impedance Spectroscopy (Eis)
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordALUMINUM-ALLOY ; PROTECTION PERFORMANCE ; MG ALLOY ; RESISTANCE ; FILMS
Indexed BySCI
Language英语
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000412639500029
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6271
Collection青海盐湖研究所知识仓储
盐湖资源与化学实验室
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & High Efficient Utilizat Salt, Xining 810008, Qinghai, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources Chem Qinghai Prov, Xining 810008, Qinghai, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Qian, Zhiqiang,Wang, Shidong,Wu, Zhijian. Corrosion Behavior Study of AZ31B magnesium Alloy by Sol-Gel Silica-based Hybrid Coating[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2017,12(9):8269-8279.
APA Qian, Zhiqiang,Wang, Shidong,&Wu, Zhijian.(2017).Corrosion Behavior Study of AZ31B magnesium Alloy by Sol-Gel Silica-based Hybrid Coating.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,12(9),8269-8279.
MLA Qian, Zhiqiang,et al."Corrosion Behavior Study of AZ31B magnesium Alloy by Sol-Gel Silica-based Hybrid Coating".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 12.9(2017):8269-8279.
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