Self-healing plasma electrolytic oxidation (PEO) coating developed by an assembly of corrosion inhibitive layer and sol-gel sealing on AA2024

被引：18

作者：

Akbarzadeh, Sajjad ^{[1
,2
]}

Coelho, Leonardo Bertolucci ^{[1
,3
]}

Dangreau, Lisa ^{[4
]}

Lanzutti, Alex ^{[5
]}

Fedrizzi, Lorenzo ^{[5
]}

Olivier, Marie-Georges ^{[1
,4
]}

机构：

[1] Univ Mons, Fac Engn, Mat Sci Dept, 20 Pl Parc, B-7000 Mons, Belgium

[2] Univ Mons, Fac Engn, Met Dept, 20 Pl Parc, B-7000 Mons, Belgium

[3] Univ Libre Bruxelles ULB, ChemSIN Chem Surfaces Interfaces & Nanomat, Blvd Triomphe 2, B-1050 Brussels, Belgium

[4] Mat Nova Res Ctr, 1 Ave N Copernic,Parc Initialis, B-7000 Mons, Belgium

[5] Univ Udine, Dept Chem Phys & Environm, Via Cotonificio 108, I-33100 Udine, Italy

来源：

CORROSION SCIENCE | 2023年 / 222卷

关键词：

Sol-gel sealing; Plasma electrolytic oxidation; GDOES; AA2024; SVET; LOADED HALLOYSITE NANOTUBES; TARTARIC-SULFURIC ACID; 2024; ALUMINUM-ALLOY; LOCALIZED CORROSION; COPPER CORROSION; PROTECTION; BENZOTRIAZOLE; SURFACE; 8-HYDROXYQUINOLINE; RESISTANCE;

D O I：

10.1016/j.corsci.2023.111424

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The inherent porous structure of PEO coatings is regarded as a drawback for long-term protection. In this investigation, the presence of pores and defects in the PEO coating was exploited as reservoirs for corrosion inhibitors to generate self-healing properties on AA2024. Smart coating systems were fabricated on the PEO layer in which 8-hydroxyquinoline (8-HQ) and benzotriazole (BTA) were employed as corrosion inhibitive layers followed by a sol-gel sealing. The protective performance relies on the mechanical interlocking between the solgel coating and the sublayer plus the sealing ability of the sol-gel in the presence of the intermediate layer.

引用

页数：21

共 93 条

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