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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
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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