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:
作者单位
高广睿 西北有色金属研究院,西安710016 
奚正平 西北有色金属研究院,西安710016 
李争显 西北有色金属研究院,西安710016 
杜继红 西北有色金属研究院,西安710016 
李红战 西北有色金属研究院,西安710016 
王培 西北有色金属研究院,西安710016 
AuthorInstitution
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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