Design of Scanning Micro-Arc Oxidation Forming Ceramic Coatings on 2024 Aluminum Alloy

被引：3
|
作者：
Lv, Peng Xiang [1 ]
Chi, Guan Xin [1 ]
Wei, Dong Bo [1 ]
Di, Shi Chun [1 ]
机构：
[1] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China
来源：
MANUFACTURING PROCESS TECHNOLOGY, PTS 1-5 | 2011年 / 189-193卷
关键词：
Scanning Micro-Arc Oxidation; Discharge Cannel; Ceramic Coatings; Coatings Thickness; Aluminum Alloy;
D O I：
10.4028/www.scientific.net/AMR.189-193.1296
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Micro-arc oxidation (MAO), also called plasma electrolytic oxidation (PEO), anodic spark deposition (ASD), or micro-arc discharge oxidizing (MDO), is an effective surface treatment technique which come from anodic oxidation technology. Via increasing the anodic voltage breaking through faraday area to a high stage accompanied by micro-arc discharge phenomenon, It indicated the ceramic coatings thickness increase along with the scanning times increase, while the thickness increment reduces. The phase composition, morphology and element distribution was studied by X-ray diffraction, scanning electron microscopy and line scanning. The morphology of the ceramic coatings shows it divided into compact layer and loose layer. And it composes of alpha-Al2O3 and gamma-Al2O3.
引用
收藏
页码：1296 / 1300
页数：5
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