\ A monolayer PEO coating on 2024 Al alloy by transient self-feedback control mode

被引：37

作者：

Du, Keqin ^{[1
]}

Guo, Xinghua ^{[1
]}

Guo, Quanzhong ^{[1
]}

Wang, Fuhui ^{[1
]}

Tian, Ying ^{[2
]}

机构：

[1] Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China

[2] Dalian Jiaotong Univ, Coll Environm & Chem Engn, Dalian, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 91卷

关键词：

Monolayer; Ceramics; Corrosion; Oxidation; POROUS-ELECTRODES; BEHAVIOR;

D O I：

10.1016/j.matlet.2012.09.055

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work for the first time reports a monolayer plasma electrolytic oxidation (PEO) coating on 2024 Al alloy substrate by transient self-feedback control (TSFC) mode. The monolayer coating without outer porous layer exhibits rather excellent compactness and corrosion protection attributed to extensive distribution of scattered ceramic particles with small size and less porosity. A possible mechanism is proposed to explain the formation of TSFC coating. Due to uniform surface distribution of the filming-formative particles and the discharge energy under high frequency square voltage (HFSV) waveform, the formation of the outer porous layer has been prevented effectively. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：45 / 49

页数：5

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