| Al_2O_3/CrN_x复合膜的摩擦磨损特性 |
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| 引用本文： | 王远,周飞,张庆文.Al_2O_3/CrN_x复合膜的摩擦磨损特性[J].材料工程,2010(2). |
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| 作者姓名： | 王远 周飞 张庆文 |
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| 作者单位： | 西南林学院,昆明,650224;南京航空航天大学,南京,210016 |
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| 基金项目： | 云南省自然科学基金(208309) |
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| 摘 要： | 为改善铝合金零部件的摩擦磨损特性,采用微弧氧化和射频磁控溅射技术,在2A12铝合金表面制备Al2O3/CrNx复合膜。用X射线衍射仪、涡流测厚仪、纳米硬度仪、微摩擦磨损试验机、非接触表面三维形貌仪及扫描电镜对Al2O3涂层及复合膜的相组成、膜厚、纳米硬度、摩擦磨损特性和磨痕形貌等进行了研究。实验结果表明:32μm厚的多孔Al2O3陶瓷涂层由α-Al2O3和γ-Al2O3相组成,外层1.2μm厚的CrNx膜由单质Cr,Cr2N和CrN相组成;Al2O3涂层及Al2O3/CrNx复合膜的摩擦因数和磨损率都随法向载荷的增加而增大,在相同实验参数下,复合膜的摩擦因数和磨损率都远小于Al2O3涂层的,这表明在Al2O3涂层表面沉积CrNx膜能明显改善其摩擦磨损特性,将延长对偶件的使用寿命。
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| 关 键 词： | 铝合金 微弧氧化 射频磁控溅射 Al_2O_3/CrN_x复合膜 摩擦磨损 |
Tribological Properties of Duplex Al_2O_3/CrN_x Coatings |
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| WANG Yuan,ZHOU Fei,ZHANG Qing-wen.Tribological Properties of Duplex Al_2O_3/CrN_x Coatings[J].Journal of Materials Engineering,2010(2). |
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| Authors: | WANG Yuan ZHOU Fei ZHANG Qing-wen |
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| Affiliation: | 1 Southwest Forestry University;Kunming 650224;China;2 Nanjing University of Aeronautics and Astronautic;Nanjing 210016;China |
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| Abstract: | In order to improve tribological properties of aluminum alloy,duplex Al2O3/CrNx coatings were prepared on 2A12 aluminum alloy by micro-arc oxidation and reactive radio frequency magnetron sputtering technique.The phase structure,thickness,nano-hardness,tribological properties and scar's micro-morphologies of Al2O3 and duplex Al2O3/CrNx coatings were respectively investigated by X-ray diffraction,MINITEST1100 equipment,nano-indenter,tribo-meters,non-contact surface profilers and scanning electron microscope.... |
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| Keywords: | aluminum alloy micro-arc oxidation reactive radio frequency magnetron sputtering duplex Al2O3/CrNxcoating friction and wear |
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