A bimodified MgAlCe-LDHs@GO self-healing anti-corrosion coating based on the micro arc oxidation coating of AZ31 magnesium alloy

被引：0
|
作者：
Jiao, Zuojun [1 ]
Zhou, Yan [1 ]
Dai, Xiaowei [1 ]
Wu, Jiahao [1 ]
Chen, Yonghua [1 ]
Wu, Mingyi [1 ]
Yao, Wenhui [1 ,2 ]
Yuan, Yuan [1 ,2 ]
Xie, Zhihui [3 ]
Ma, Yanlong [4 ]
Andrej, Atrens [5 ]
Wu, Liang [1 ,2 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
[2] Chongqing Univ, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China
[3] China West Normal Univ, Coll Chem & Chem Engn, Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637002, Peoples R China
[4] Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400054, Peoples R China
[5] Univ Queensland, Ctr Adv Mat & Proc, Sch Mech & Min Engn, St Lucia, Qld 4072, Australia
来源：
CORROSION SCIENCE | 2025年 / 248卷
基金：
中国国家自然科学基金;
关键词：
Micro arc oxidation; Layered double hydroxides; Graphene oxide; Corrosion inhibitor; Self-healing; LAYERED DOUBLE HYDROXIDE; PLASMA ELECTROLYTIC OXIDATION; GRAPHENE OXIDE; ALUMINUM-ALLOY; MG ALLOYS; CORROSION; FILMS; COMPOSITE; PERFORMANCE; INHIBITION;
D O I：
10.1016/j.corsci.2025.112805
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To obtain magnesium (Mg) alloys with long-term corrosion resistance, coatings with enhanced stability and selfhealing effect are necessary. This study in-situ produced a layered double hydroxides (LDHs) coating using hydrothermal method to process the cerium salt treated micro arc oxidation (MAO) coating in sodium dodecylbenzene sulfonate (SDBS)-modified graphene oxide (GO) solution (MgAlCe-LDHs@GO-SDBS), and further introduced 3,5-dinitrosalicylic (D) acid and quinolizic acid (Q) via anion-exchange method. The multiple effects of Ce, GO-SDBS, and corrosion inhibitors significantly enhanced the coatings' anti-corrosive and self-healing performance. The MgAlCe-LDHs@GO-S&D coating possessed significantly decreased corrosion current density of 3.6 x 10-9 A center dot cm-2.
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页数：13
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