Silane-Modified Graphene Oxide Composite as a Promising Corrosion-Inhibiting Film for Magnesium Alloy AZ31

被引：7
|
作者：
Zhang, You [1 ]
Wang, Juping [1 ]
Zhang, Zheng [1 ]
Wei, Kai [1 ]
Zhang, Zhe [1 ]
Hao, Xuelong [2 ,3 ]
Chen, Fei [1 ]
机构：
[1] Beijing Inst Petrochem Technol, Coll New Mat & Chem Engn, Beijing, Peoples R China
[2] Gen Res Inst Nonferrous Met, Beijing, Peoples R China
[3] China United Testing & Certificat Co Ltd, Beijing, Peoples R China
来源：
FRONTIERS IN MATERIALS | 2021年 / 8卷
关键词：
graphene oxide; silane; film; corrosion resistance; Mg alloy; SOL-GEL COATINGS; FUNCTIONALIZED GRAPHENE; MECHANICAL-PROPERTIES; CHEMICAL-REDUCTION; BARRIER; RESISTANCE; ADHESION;
D O I：
10.3389/fmats.2021.737792
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, (3-aminopropyl)-triethoxysilane-modified graphene oxide (GO) composite thin films were synthesized on magnesium alloy AZ31 substrate. The structure, composition, and morphology of silane-GO films were analyzed. Electrochemical measurements and immersion tests showed that silane-GO coatings provide effective protection for magnesium alloy substrates, owing to the good barrier property of the layered GO, and decrease the defects on the GO film surface due to the silane modification. In addition, the corrosion product between the outer silane-GO film and Mg alloy substrate also improved the corrosion resistance of the Mg alloy. Thus, silane-GO composite thin films provide an effective approach for protecting the lightweight metal substrate.</p>
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页数：9
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