高广睿,奚正平,李争显,杜继红,李红战,王培.微弧氧化电流密度对ZL205A铝合金氧化膜层性能的影响[J].表面技术,2010,39(5):88-91.
GAO Guang-rui,XI Zheng-ping,LI Zheng-xian,DU Ji-hong,Li Hong-zhan,WANG-pei.Effects of Current Density on Micro-arc Oxidation Coatings of ZL205A Alloy[J].Surface Technology,2010,39(5):88-91 |
| 微弧氧化电流密度对ZL205A铝合金氧化膜层性能的影响 |
| Effects of Current Density on Micro-arc Oxidation Coatings of ZL205A Alloy |
| 投稿时间：2010-04-23 修订日期：2010-10-10 |
| DOI： |
| 中文关键词: ZL205A铝合金 微弧氧化 电流密度 耐磨 |
| 英文关键词:ZL205A aluminium alloy micro-arc oxidation current density wear resistance |
| 基金项目: |
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| Author | Institution |
| GAO Guang-rui | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| XI Zheng-ping | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| LI Zheng-xian | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| DU Ji-hong | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| Li Hong-zhan | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| WANG-pei | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
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| 中文摘要: |
| 采用微弧氧化技术,以ZL205A铝合金为基材,固定其它条件不变,只改变电流密度,制备多种氧化膜层,研究了电流密度对膜层的厚度、表面形貌、元素成分、相结构及耐磨性能的影响。结果表明:随电流密度的升高,膜层总厚度和致密层厚度均呈线性增长,同时膜层中的微孔直径增大,但数量减少;膜层的主要成分为Al-Si-O相,其含量随电流密度的增加而增加;氧化膜的磨损机制为磨粒磨损,电流密度对其摩擦因数的影响不大,但其耐磨性能随电流密度的增加而下降,这与外层疏松层的作用有关。 |
| 英文摘要: |
| Ceramic coating were prepared on ZL205A aluminium alloy by micro-are oxidation(MAO)at different current density and fixed other conditions. The effects of anode current density on the thickness, morphology, phase composition and the wear resistance of oxidation coating were studied.The results show that the total thickness and dense layer of MAO coating increase linearly with the increasing of current density. The size of micro-pore of oxidation coating increases, while the micropores number decreases. The content of Al-Si-O, main phase composition in MAO coating is increased with the increasing of current density, because more SiO32- are involved in the MAO reaction. The wear test shows that the wear mechanism of MAO coating is abrasive wear. The friction coeffition of MAO is higher than the substrate. The effect of the current density on friction coeffition isn't apparently. The wear resistance decreases with the increasing of current density. |
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