Effect of the electrolytic solution composition on the performance of micro-arc anodic oxidation films formed on AM60B magnesium alloy

被引：76

作者：

Da Forno, A. ^{[1
]}

Bestetti, M. ^{[1
]}

机构：

[1] Politecn Milan, Dipartimento Chim Mat & Ingn Chim G Natta, I-20131 Milan, Italy

来源：

SURFACE & COATINGS TECHNOLOGY | 2010年 / 205卷 / 06期

关键词：

Magnesium alloys; Micro arc anodic oxidation; Anodic oxide; Spark discharge; Corrosion resistance; KOH-ALUMINATE SOLUTIONS; MG-AL ALLOYS; AZ91D;

D O I：

10.1016/j.surfcoat.2010.05.043

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Anodic oxidation in the micro-arc regime is one of the most investigated techniques used to coat magnesium alloys with ceramic coatings for protection from corrosion and wear The composition of the electrolytic solution affects the anodic oxide layer morphology and composition and its behaviour in aggressive environments In this paper the influence of the composition of the electrolytic solution on the anodic oxidation process of AM60B magnesium alloy and oxide properties is discussed Scanning electron microscopy and x-ray diffraction were employed to assess morphology crystallographic structure and composition of the anodic oxide Electrochemical polarization tests were performed to evaluate the corrosion resistance behaviour of the coated magnesium alloys (C) 2010 Elsevier B V All rights reserved

引用

页码：1783 / 1788

页数：6

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