引用本文:曾云， 陈飞， 雷元贵， 魏田杰.纯镁微弧氧化含碳陶瓷层的耐磨性能[J].中国表面工程,2015,28(4):84~89
ZENG Yun, CHEN Fei, LEI Yuangui, WEI Tianjie.Tribological Properties of Containing Carbon Micro-arc Oxidation Ceramic Coating on Pure Mg[J].China Surface Engineering,2015,28(4):84~89
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纯镁微弧氧化含碳陶瓷层的耐磨性能
曾云， 陈飞， 雷元贵， 魏田杰1,2
1. 北京石油化工学院;2. 北京化工大学 材料科学与工程学院
摘要:
为进一步提高纯镁表面微弧氧化陶瓷层的摩擦磨损性能，在硅酸盐体系的电解液中加入不同质量浓度的石墨烯添加剂，对纯镁试样进行微弧氧化处理。利用扫描电子显微镜、电子探针、显微硬度仪和原子力显微镜等分析镁微弧氧化陶瓷层的表面和截面形貌、陶瓷层成分、显微硬度和表面粗糙度，并用MST3000球盘磨损实验机对微弧氧化陶瓷层的摩擦学性能进行研究，台阶仪计算比磨损量。结果表明：在微弧氧化电解液中加入少量石墨烯添加剂后制备的陶瓷层中含有一定量的碳元素，含碳的微弧氧化陶瓷层在干摩擦小滑动距离下的摩擦因数显著减小，最低至0.095，较原始镁试样的0.45减小近50倍，含碳微弧氧化陶瓷层比磨损量是原始试样的1/5。纯镁表面含碳微弧氧化陶瓷层有效提高了纯镁表面的减摩和耐磨性。
关键词:  纯镁  微弧氧化  石墨烯添加剂  耐磨性
DOI：10.11933/j.issn.1007-9289.2015.04.011
分类号:
基金项目:
Tribological Properties of Containing Carbon Micro-arc Oxidation Ceramic Coating on Pure Mg
ZENG Yun, CHEN Fei, LEI Yuangui, WEI Tianjie1,2
1a. College of Materials Science and Engineering, 1b. Beijing Key Lab of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology;2. College of Materials Science and Engineering, Beijing University of Chemical Technology
Abstract:
Microarc oxidation coatings were prepared on pure Mg by microarc oxidation (MAO) in Na2SiO3NaFKOH electrolytic solution with different concentrations graphene additives to improve the tribological property of the coating. Microstructures, cross sectional morphology and component were analyzed using SEM and electron microprobe (EPMA). Micro hardness and surface roughness were analyzed using micro hardness tester and AFM. The wear properties of microarc oxidation coatings were investigated using a ballondisc wear test under the dry sliding conditions and used the profiler is used to calculate the wear volume. The results show that microarc oxidation coating contained is carbon element. The micro arc oxidation ceramic layer containing carbon in dry friction coefficient of friction small sliding distance decrease significantly, the minimum is 0.095, compared with the magnesium sample of 0.45 decreasing nearly 50 times and carbon containing ceramic coatings formed by micro arc oxidation on wear volume is the magnesium sample 1/5. The surface of magnesium micro arc oxidation ceramic layer containing carbon can effectively improve the friction and wear resistance of pure magnesium.
Key words:  pure Mg  microarc oxidation  graphene additives  wear properties
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