喷砂镁合金微弧氧化电解液组分的优化

查吉利; 龙思远; 宋东福; 游国强; 秦朝辉

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喷砂镁合金微弧氧化电解液组分的优化
Optimization of Electrolyte Concentration in Micro-arc Oxidation on Sand-blasting Magnesium Alloy
2010年30卷第10期页码：951-954
纸质出版日期： 2010 ，
DOI：

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[1]查吉利,龙思远,宋东福,游国强,秦朝辉.喷砂镁合金微弧氧化电解液组分的优化[J].特种铸造及有色合金,2010,30(10):951-954+986.

Zha Jili1, Long Siyuan1, Song Dongfu1, et al. Optimization of Electrolyte Concentration in Micro-arc Oxidation on Sand-blasting Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2010,30(10):951-954.
[1]查吉利,龙思远,宋东福,游国强,秦朝辉.喷砂镁合金微弧氧化电解液组分的优化[J].特种铸造及有色合金,2010,30(10):951-954+986. DOI：

Zha Jili1, Long Siyuan1, Song Dongfu1, et al. Optimization of Electrolyte Concentration in Micro-arc Oxidation on Sand-blasting Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2010,30(10):951-954. DOI：

摘要

采用正交试验优化了喷砂后镁合金微弧氧化电解液组分

讨论了组分浓度对氧化膜性能的影响

并用SEM、EDS、XRD等分析了优化工艺后氧化膜的微观形貌、化学成分和相组成。研究表明

较优的电解液组分为15g/L的Na2SiO3·7H2O、6g/L的KF·H2O、9g/L的KOH、10mL/L的C3H2（OH）3;氧化膜表面形貌保留了喷砂时的粗糙不平;氧化膜由大量均匀的、微孔内径为0.2～1.5μm的陶瓷层组成

物相则主要由Mg、MgO、Mg2SiO4、MgAl2O4及无定型相组成。

Abstract

Electrolyte concentration in micro-arc oxidation on sand-blasting magnesium alloy was optimized by orthogonal testing.Effects of component concentration on properties of micro-arc oxide film were approached

and the morphology

chemical composition and phase structure were analyzed by SEM（scanning electron microscope）

EDS（energy dispersive spectrometer）

XRD（X-ray diffraction）.The results show that optimal electrolyte concentration is as follows:15g/L Na2SiO3·7H2O

6g/L KF·H2O

9 g/LKOH

10mL/L C3H2（OH）3.Surface morphology of film inherits the sand-blasting’s ones.Oxide film consists of ceramic layer with a great deal of uniform discharge hole with diameters in range of 0.2～1.5 μm

and the phase is composed of Mg

MgO

Mg2SiO4

MgAl2O4and some arbitrary phase.